Waterfox x64 Version 140.13.0.1251
6.6.15 - Security follow-up release$$$Security$$$Waterfox 6.6.15 is a follow-up security release for Mozilla Foundation Security Advisory 2026-58.$$$$$$The majority of fixes related to this advisory were already included in Waterfox 6.6.14. This release fixes up the remaining relevant issues and brings the 6.6 series fully in line with the advisory.
Waterfox x64 Version 140.12.0.15
6.6.14 - Web compatibility and ad blocker refinements$$$Web Compatibility$$$Attempted compatibility improvements for Chase and Discord by adjusting how Waterfox presents itself to the site.$$$$$$These changes are compatibility workarounds rather than fixes for a technical limitation in Waterfox. Some sites appear to rely on user agent checks to decide whether a browser is supported; so Waterfox now makes a better effort to identify itself in a way those checks will accept. There is no guarantee these fixes will work; but I have not found a technical reason why these websites would not work that hasn’t already been implemented in Waterfox.$$$$$$Site Data$$$Added a new Always store cookies/data for this site toggle to the site information panel. This gives you a quick way to let a trusted site keep its cookies and site data; which can help when a site keeps forgetting logins; preferences; or other saved state because of stricter cookie settings. Thanks to Defelo for the PR; and to LibreWolf for developing the original patch.$$$Ad Blocker$$$The built-in blocker has received another round of reliability and performance improvements:$$$$$$Modern filter lists should now be handled more reliably.$$$Some site specific ad-blocking fixes should now be picked up correctly instead of being ignored or misread.$$$Pages loaded immediately after opening Waterfox should be less likely to briefly show ads or annoyances before the blocker catches up.$$$The blocker now does a little less background work when a page starts loading.$$$This will hopefully enable greater compatibility with websites like YouTube; working around their anti-adblock messages.
Waterfox x64 Version 140.12.0.15
6.6.14 - Web compatibility and ad blocker refinements$$$Web Compatibility$$$Attempted compatibility improvements for Chase and Discord by adjusting how Waterfox presents itself to the site.$$$$$$These changes are compatibility workarounds rather than fixes for a technical limitation in Waterfox. Some sites appear to rely on user agent checks to decide whether a browser is supported; so Waterfox now makes a better effort to identify itself in a way those checks will accept. There is no guarantee these fixes will work; but I have not found a technical reason why these websites would not work that hasn’t already been implemented in Waterfox.$$$$$$Site Data$$$Added a new Always store cookies/data for this site toggle to the site information panel. This gives you a quick way to let a trusted site keep its cookies and site data; which can help when a site keeps forgetting logins; preferences; or other saved state because of stricter cookie settings. Thanks to Defelo for the PR; and to LibreWolf for developing the original patch.$$$Ad Blocker$$$The built-in blocker has received another round of reliability and performance improvements:$$$$$$Modern filter lists should now be handled more reliably.$$$Some site specific ad-blocking fixes should now be picked up correctly instead of being ignored or misread.$$$Pages loaded immediately after opening Waterfox should be less likely to briefly show ads or annoyances before the blocker catches up.$$$The blocker now does a little less background work when a page starts loading.$$$This will hopefully enable greater compatibility with websites like YouTube; working around their anti-adblock messages.
Waterfox x64 Version 140.11.0.1075
6.6.13 - Default ad blocker & search updates$$$Security$$$Fixed multiple security vulnerabilities as described in Mozilla Foundation Security Advisory 2026-48.$$$Bug Fixes$$$Tracking protection assets: Fixed an issue where tracking protection wasn’t blocking things properly because the required assets weren’t being bundled with the browser.$$$Web Compatibility$$$IDN unicode display: Internationalised domain names are now handled and displayed by the browser as unicode; instead of always being shown as punycode. This provides better legibility for users who visit websites with non-latin characters.$$$CSS dithering: Dithering is now enabled for CSS rendering; which should eliminate visible colour banding on gradients.$$$LinkedIn and others: Attempted compatibility improvements with sites such as LinkedIn that were not rendering correctly.$$$Ad Blocker$$$The built-in ad blocker is now enabled by default! After several rounds of preview testing across 6.6.11 and 6.6.12; the blocker is ready for general use - giving you high performance ad blocking out of the box while supporting Waterfox at the same time.$$$$$$By default; the blocker allows search ads only on Waterfox’s default search provider; while blocking ads everywhere else. Those ads are how our search partnership funds Waterfox; so leaving them enabled is exactly how the built-in blocker supports us - and the allowance always follows whichever provider we ship as the default; not whichever engine you’ve set for yourself.$$$Search$$$Startpage removed as a search provider$$$We’ve been asked to remove Startpage as our default search provider; and from the browser options completely. This is out of our control; but we wanted to be transparent about the change rather than having it appear without explanation. Unfortunately; it was costing Startpage more to serve Waterfox users than the revenue they generated; which consequently meant there was nothing left to split with Waterfox.$$$$$$New temporary default: 1.org$$$The default search engine is for the time being; 1.org; a charitable search engine. Profits are shared with a charity of your choice once you sign up; or otherwise go to the spotlight charity of the month. We think it’s a great fit while we work out a longer term arrangement..
Waterfox x64 Version 140.11.0.1075
6.6.13 - Default ad blocker & search updates$$$Security$$$Fixed multiple security vulnerabilities as described in Mozilla Foundation Security Advisory 2026-48.$$$Bug Fixes$$$Tracking protection assets: Fixed an issue where tracking protection wasn’t blocking things properly because the required assets weren’t being bundled with the browser.$$$Web Compatibility$$$IDN unicode display: Internationalised domain names are now handled and displayed by the browser as unicode; instead of always being shown as punycode. This provides better legibility for users who visit websites with non-latin characters.$$$CSS dithering: Dithering is now enabled for CSS rendering; which should eliminate visible colour banding on gradients.$$$LinkedIn and others: Attempted compatibility improvements with sites such as LinkedIn that were not rendering correctly.$$$Ad Blocker$$$The built-in ad blocker is now enabled by default! After several rounds of preview testing across 6.6.11 and 6.6.12; the blocker is ready for general use - giving you high performance ad blocking out of the box while supporting Waterfox at the same time.$$$$$$By default; the blocker allows search ads only on Waterfox’s default search provider; while blocking ads everywhere else. Those ads are how our search partnership funds Waterfox; so leaving them enabled is exactly how the built-in blocker supports us - and the allowance always follows whichever provider we ship as the default; not whichever engine you’ve set for yourself.$$$Search$$$Startpage removed as a search provider$$$We’ve been asked to remove Startpage as our default search provider; and from the browser options completely. This is out of our control; but we wanted to be transparent about the change rather than having it appear without explanation. Unfortunately; it was costing Startpage more to serve Waterfox users than the revenue they generated; which consequently meant there was nothing left to split with Waterfox.$$$$$$New temporary default: 1.org$$$The default search engine is for the time being; 1.org; a charitable search engine. Profits are shared with a charity of your choice once you sign up; or otherwise go to the spotlight charity of the month. We think it’s a great fit while we work out a longer term arrangement..
Waterfox x64 Version 140.11.0.3439
6.6.12 - Security fixes and ad blocker improvements$$$Security$$$Fixed multiple security vulnerabilities as described in Mozilla Foundation Security Advisory 2026-32.$$$Ad Blocker (preview)$$$The built-in ad blocker introduced in 6.6.11 has received a few improvements in this release. It remains in preview testing - you can follow the feedback issue at Native Ad Blocker - Feedback · Issue #4182.$$$$$$Custom Filter Lists manager$$$A new dialog lets you add and remove your own filter list URLs directly from the UI; rather than being limited to the built-in lists. A new button has been added to the blocker preferences to open the manager.$$$$$$Filter Lists screen improvements$$$The existing Filter Lists screen has received major updates:$$$$$$Search box to quickly find lists$$$“Refresh now” button for manual updates$$$Refresh interval dropdown (4h; 8h; 12h; 24h; 7d; or default)$$$Per list “last updated / next refresh” information$$$Source link icon for each list$$$Less wasteful update logic$$$Each list’s own Expires value is now respected; instead of a fixed 12h interval applied to all lists$$$Configurable refresh interval$$$Manual refresh method exposed to the UI$$$Better error handling when loading the engine cache$$$Safer input sanitization before data is passed to the engine$$$Network observers are registered and unregistered based on blocker state$$$Better cosmetic filtering$$$Early check for whether the blocker is enabled$$$Cosmetic CSS injection now only runs on HTML pages; avoiding breakage on XML or text content$$$Hard cap on queried DOM elements to prevent runaway processing$$$Uses CSS rule insertion instead of rebuilding the full style text$$$Stricter extension detection$$$Conflicting ad blocker extensions are now identified only by known extension IDs. Pattern matching on extension name and description has been removed; reducing false positives from unrelated extensions.
Waterfox x64 Version 140.11.0.3439
6.6.12 - Security fixes and ad blocker improvements$$$Security$$$Fixed multiple security vulnerabilities as described in Mozilla Foundation Security Advisory 2026-32.$$$Ad Blocker (preview)$$$The built-in ad blocker introduced in 6.6.11 has received a few improvements in this release. It remains in preview testing - you can follow the feedback issue at Native Ad Blocker - Feedback · Issue #4182.$$$$$$Custom Filter Lists manager$$$A new dialog lets you add and remove your own filter list URLs directly from the UI; rather than being limited to the built-in lists. A new button has been added to the blocker preferences to open the manager.$$$$$$Filter Lists screen improvements$$$The existing Filter Lists screen has received major updates:$$$$$$Search box to quickly find lists$$$“Refresh now” button for manual updates$$$Refresh interval dropdown (4h; 8h; 12h; 24h; 7d; or default)$$$Per list “last updated / next refresh” information$$$Source link icon for each list$$$Less wasteful update logic$$$Each list’s own Expires value is now respected; instead of a fixed 12h interval applied to all lists$$$Configurable refresh interval$$$Manual refresh method exposed to the UI$$$Better error handling when loading the engine cache$$$Safer input sanitization before data is passed to the engine$$$Network observers are registered and unregistered based on blocker state$$$Better cosmetic filtering$$$Early check for whether the blocker is enabled$$$Cosmetic CSS injection now only runs on HTML pages; avoiding breakage on XML or text content$$$Hard cap on queried DOM elements to prevent runaway processing$$$Uses CSS rule insertion instead of rebuilding the full style text$$$Stricter extension detection$$$Conflicting ad blocker extensions are now identified only by known extension IDs. Pattern matching on extension name and description has been removed; reducing false positives from unrelated extensions.
Waterfox x64 Version 140.10.0.2207
6.6.11 - Security fixes and feature preview$$$Security$$$The latest security and bug fixes (at the time of this release) have been pulled in from the upcoming Gecko 140.10 ESR release; which will be generally available in two weeks’ time.$$$Changes$$$Waterfox is now testing a new feature: a built-in ad blocker that will be enabled by default in an upcoming release. It blocks ads out of the box using filter lists from EasyList; uBlock Origin; and AdGuard. It’s available for early testing in this build and works safely alongside existing ad blocker extensions.$$$$$$Known Issues$$$Discord voice and video chat appear to still be having issues; even though we have patched what appears to be their technical requirement and user agent block.$$$Various tree tab extension issues such as pinned tabs and other small UI issues (Note: this is being re-architected as a native feature; instead of a privileged web extension; which should resolve most of these issues).
Waterfox x64 Version 140.10.0.2207
6.6.11 - Security fixes and feature preview$$$Security$$$The latest security and bug fixes (at the time of this release) have been pulled in from the upcoming Gecko 140.10 ESR release; which will be generally available in two weeks’ time.$$$Changes$$$Waterfox is now testing a new feature: a built-in ad blocker that will be enabled by default in an upcoming release. It blocks ads out of the box using filter lists from EasyList; uBlock Origin; and AdGuard. It’s available for early testing in this build and works safely alongside existing ad blocker extensions.$$$$$$Known Issues$$$Discord voice and video chat appear to still be having issues; even though we have patched what appears to be their technical requirement and user agent block.$$$Various tree tab extension issues such as pinned tabs and other small UI issues (Note: this is being re-architected as a native feature; instead of a privileged web extension; which should resolve most of these issues).
Waterfox x64 Version 140.8.0.11
6.6.9 - Tab unloading & passkeys$$$This release adds manual tab unloading (useful for freeing memory without closing tabs) and improves how unloaded tabs are represented; fixes a few import/UI issues; and includes platform specific improvements for macOS and Windows.$$$$$$General$$$When importing data from another browser; empty profiles no longer appear in the selection list.$$$Added an Unload Tab option to the tab context menu to free memory without closing the tab.$$$
Waterfox x64 Version 140.8.0.11
6.6.9 - Tab unloading & passkeys$$$This release adds manual tab unloading (useful for freeing memory without closing tabs) and improves how unloaded tabs are represented; fixes a few import/UI issues; and includes platform specific improvements for macOS and Windows.$$$$$$General$$$When importing data from another browser; empty profiles no longer appear in the selection list.$$$Added an Unload Tab option to the tab context menu to free memory without closing the tab.$$$
Waterfox x64 Version 140.7.0.107
6.6.8 - Tab unloading & passkeys$$$This release adds manual tab unloading (useful for freeing memory without closing tabs) and improves how unloaded tabs are represented; fixes a few import/UI issues; and includes platform specific improvements for macOS and Windows.$$$$$$General$$$When importing data from another browser; empty profiles no longer appear in the selection list.$$$Added an Unload Tab option to the tab context menu to free memory without closing the tab.$$$Unloaded tabs now show a wireframe preview (after the tab has been active at least once).$$$Fixed an issue where the Show duplicate tab menu item option did nothing on the Settings page.$$$Updated search engine aliases so they no longer take over single-character shortcuts; allowing you to assign them as you wish:$$$Google: @g ? @go$$$Bing: @b ? @bi$$$Ecosia: @e ? @ec$$$Mojeek: @m ? @mo$$$Qwant: @q ? @qw$$$Waterfox Private Search: @w ? @wps
Waterfox x64 Version 140.7.0.107
6.6.8 - Tab unloading & passkeys$$$This release adds manual tab unloading (useful for freeing memory without closing tabs) and improves how unloaded tabs are represented; fixes a few import/UI issues; and includes platform specific improvements for macOS and Windows.$$$$$$General$$$When importing data from another browser; empty profiles no longer appear in the selection list.$$$Added an Unload Tab option to the tab context menu to free memory without closing the tab.$$$Unloaded tabs now show a wireframe preview (after the tab has been active at least once).$$$Fixed an issue where the Show duplicate tab menu item option did nothing on the Settings page.$$$Updated search engine aliases so they no longer take over single-character shortcuts; allowing you to assign them as you wish:$$$Google: @g ? @go$$$Bing: @b ? @bi$$$Ecosia: @e ? @ec$$$Mojeek: @m ? @mo$$$Qwant: @q ? @qw$$$Waterfox Private Search: @w ? @wps
Waterfox x64 Version 140.6.0.7
6.6.7 - Import & Linux video fixes$$$This is a small release with a Windows import fix; a Linux HDR playback fix; and an important Flathub verification milestone for our Flatpak users.$$$$$$Windows$$$Firefox import fix$$$Fixed an issue that prevented importing Firefox data on Windows. Even if you have already setup Waterfox; you can still import your data via Settings (about:preferences) ? General ? Import browser data.$$$Info$$$$$$Passwords import is not currently supported at the moment due to the different cryptography used in newer Firefox versions.
Waterfox x64 Version 140.6.0.7
6.6.7 - Import & Linux video fixes$$$This is a small release with a Windows import fix; a Linux HDR playback fix; and an important Flathub verification milestone for our Flatpak users.$$$$$$Windows$$$Firefox import fix$$$Fixed an issue that prevented importing Firefox data on Windows. Even if you have already setup Waterfox; you can still import your data via Settings (about:preferences) ? General ? Import browser data.$$$Info$$$$$$Passwords import is not currently supported at the moment due to the different cryptography used in newer Firefox versions.
Waterfox x64 Version 140.5.0.11
6.6.5$$$This update adds Ukrainian as a UI language; a new quality-of-life feature and the latest security fixes.$$$$$$New$$$Added Ukrainian locale$$$Added the ability to copy current tab url to your clipboard$$$macOS: Command + Shift + U$$$Windows/Linux: Ctrl + Shift + U$$$Fixed$$$All security advisories part of MFSA2025-89.
Waterfox x64 Version 140.5.0.11
6.6.5$$$This update adds Ukrainian as a UI language; a new quality-of-life feature and the latest security fixes.$$$$$$New$$$Added Ukrainian locale$$$Added the ability to copy current tab url to your clipboard$$$macOS: Command + Shift + U$$$Windows/Linux: Ctrl + Shift + U$$$Fixed$$$All security advisories part of MFSA2025-89.
Waterfox x64 Version 140.4.0.2203
6.6.4$$$This update restores correct app identification on Linux; fixes search provider issues; adjusts tab grouping defaults; and makes Ecosia the default search engine again while also including Waterfox Private Search.$$$$$$Fixed$$$Mojeek searches now work out of the box (fixed a typo where the query parameter was p instead of q).$$$When Google Search is set as default; autocomplete should now work.$$$All security advisories due for release on October 14; 2025.$$$Changed$$$Linux: Restored the canonical app name and window class to waterfox; as it was in Waterfox versions prior to 6.6.$$$Tab grouping is disabled by default due to an issue where closing/reopening Waterfox could merge all groups into a single group at random. It can be enabled by toggling browser.tabs.autoGroupNewTabs to true in about:config.
Waterfox x64 Version 140.4.0.2203
6.6.4$$$This update restores correct app identification on Linux; fixes search provider issues; adjusts tab grouping defaults; and makes Ecosia the default search engine again while also including Waterfox Private Search.$$$$$$Fixed$$$Mojeek searches now work out of the box (fixed a typo where the query parameter was p instead of q).$$$When Google Search is set as default; autocomplete should now work.$$$All security advisories due for release on October 14; 2025.$$$Changed$$$Linux: Restored the canonical app name and window class to waterfox; as it was in Waterfox versions prior to 6.6.$$$Tab grouping is disabled by default due to an issue where closing/reopening Waterfox could merge all groups into a single group at random. It can be enabled by toggling browser.tabs.autoGroupNewTabs to true in about:config.
Waterfox x64 Version 140.3.0.2083
6.6.3$$$This update focuses on polish and fixes; with special attention to a long-standing theming issue and several quality-of-life improvements for tab grouping.$$$$$$Fixes and improvements$$$Theming$$$Resolved a long-standing issue where Waterfox’s styles could “leak” into the web page area. Customisations now apply only to the browser interface; not to website content.$$$Improved handling of theme colouring to prevent contrast issues.$$$Active tab context line has been enabled by default; after many requests.$$$Tab groups$$$Smoother startup: automatic grouping now waits until your previous session has fully restored. It only applies to tabs you open after everything is loaded.$$$Your existing tab order and groups are preserved at startup; nothing gets rearranged automatically.$$$If you collapse your only tab group; you’ll still have a single ungrouped tab available. That tab won’t be pulled back into a group unless you choose to do so.$$$Compatibility$$$Updated emoji support to Emoji 16.0.1 on platforms that don’t provide these characters natively; improving how newer emojis appear.
Waterfox x64 Version 140.3.0.2083
6.6.3$$$This update focuses on polish and fixes; with special attention to a long-standing theming issue and several quality-of-life improvements for tab grouping.$$$$$$Fixes and improvements$$$Theming$$$Resolved a long-standing issue where Waterfox’s styles could “leak” into the web page area. Customisations now apply only to the browser interface; not to website content.$$$Improved handling of theme colouring to prevent contrast issues.$$$Active tab context line has been enabled by default; after many requests.$$$Tab groups$$$Smoother startup: automatic grouping now waits until your previous session has fully restored. It only applies to tabs you open after everything is loaded.$$$Your existing tab order and groups are preserved at startup; nothing gets rearranged automatically.$$$If you collapse your only tab group; you’ll still have a single ungrouped tab available. That tab won’t be pulled back into a group unless you choose to do so.$$$Compatibility$$$Updated emoji support to Emoji 16.0.1 on platforms that don’t provide these characters natively; improving how newer emojis appear.
Waterfox x64 Version 128.6.0.65535
6.5.2$$$Fixes$$$Fixed various theming issues.$$$Fixed various vertical tab issues.$$$Latest security fixes1.$$$Known Issues$$$The Restart button is missing on Linux and Windows.$$$Some users may experience that their session may not be able to be restored (your sessions are still in your profile; so your data is still available). May be related to Bug 1901899.$$$Footnotes$$$MFSA 2024-64 ?
Waterfox x64 Version 128.5.0.65535
6.5.1$$$Fixes$$$Updated the JPEG-XL library to the latest version. This should stop various websites that serve .jxl files from crashing in the tab they’re loaded.$$$The missing strings for Look & Feel page are now no longer missing; meaning you can change your theme preferences once again.$$$Known Issues$$$The Restart button is missing on Linux and Windows.$$$The status bar colour does not match whichever theme colours are set on Linux and Windows.$$$Some user’s may experience that their session may not be able to be restored (your sessions is still in your profile; so the data is still available). May be related to Bug 1901899.
Waterfox x64 Version 128.5.0.65535
6.5.1$$$Fixes$$$Updated the JPEG-XL library to the latest version. This should stop various websites that serve .jxl files from crashing in the tab they’re loaded.$$$The missing strings for Look & Feel page are now no longer missing; meaning you can change your theme preferences once again.$$$Known Issues$$$The Restart button is missing on Linux and Windows.$$$The status bar colour does not match whichever theme colours are set on Linux and Windows.$$$Some user’s may experience that their session may not be able to be restored (your sessions is still in your profile; so the data is still available). May be related to Bug 1901899.
Waterfox x64 Version 115.17.0.9049
G6.0.20$$$Changes$$$Critical Security Fixes; please update as soon as possible.$$$DRM now works on macOS; so you can stream all your favourite shows on platforms such as Netflix; Prime Video; Disney+ and more.
Waterfox x64 Version 115.16.0.9013
G6.0.19$$$Changes$$$Security fixes1.
Waterfox x64 Version 140.2.0.83
6.6.1$$$Fixes$$$WebGPU$$$Removed code that prevented WebGPU from running on release channel builds$$$Misc$$$Re-implemented support for Unity global menu on Linux; with thanks to the Arch Linux maintainers$$$Fixed an issue where the Install update option in about:addons did not appear after a manual update check when automatic updates were disabled$$$Fixed an issue where the Restart command was not working on Linux and Windows (macOS unaffected)$$$Fixed an issue where the Restart command was misaligned on Linux and Windows when icons in menus were disabled$$$Disabled Captive Portal detection; let the operating system handle it instead; one less network request to Mozilla$$$Waterfox string updates$$$Reordered and grouped entries in language files for improved readability and maintainability; no functional changes intended$$$Restored two Tree Vertical Tabs strings inadvertently dropped during the reorg:$$$tree-auto-collapse-expand-subtree-on-attach (.label; .accesskey)$$$tree-auto-collapse-expand-subtree-on-select (.label; .accesskey)$$$Private Tabs improvements$$$New preference to control button visibility$$$$$$browser.privateTab.showNewTabButton$$$Controls the New Private Tab button next to the New Tab button$$$Applies instantly in both horizontal and vertical tab layouts$$$Is now false by default; toggle to true to enable$$$Privacy enhancements for Private Tabs$$$$$$Search suggestions are disabled in the address bar for Private container tabs$$$Neither remote engine suggestions nor local form history suggestions will appear$$$Search terms from Private container tabs are no longer saved$$$Form history entries are not written$$$Input/adaptive history is not written$$$The address bar view is cleared when switching into a Private container tab to avoid showing stale entries
Waterfox x64 Version 140.2.0.83
6.6.1$$$Fixes$$$WebGPU$$$Removed code that prevented WebGPU from running on release channel builds$$$Misc$$$Re-implemented support for Unity global menu on Linux; with thanks to the Arch Linux maintainers$$$Fixed an issue where the Install update option in about:addons did not appear after a manual update check when automatic updates were disabled$$$Fixed an issue where the Restart command was not working on Linux and Windows (macOS unaffected)$$$Fixed an issue where the Restart command was misaligned on Linux and Windows when icons in menus were disabled$$$Disabled Captive Portal detection; let the operating system handle it instead; one less network request to Mozilla$$$Waterfox string updates$$$Reordered and grouped entries in language files for improved readability and maintainability; no functional changes intended$$$Restored two Tree Vertical Tabs strings inadvertently dropped during the reorg:$$$tree-auto-collapse-expand-subtree-on-attach (.label; .accesskey)$$$tree-auto-collapse-expand-subtree-on-select (.label; .accesskey)$$$Private Tabs improvements$$$New preference to control button visibility$$$$$$browser.privateTab.showNewTabButton$$$Controls the New Private Tab button next to the New Tab button$$$Applies instantly in both horizontal and vertical tab layouts$$$Is now false by default; toggle to true to enable$$$Privacy enhancements for Private Tabs$$$$$$Search suggestions are disabled in the address bar for Private container tabs$$$Neither remote engine suggestions nor local form history suggestions will appear$$$Search terms from Private container tabs are no longer saved$$$Form history entries are not written$$$Input/adaptive history is not written$$$The address bar view is cleared when switching into a Private container tab to avoid showing stale entries
Waterfox x64 Version 140.2.0.83
6.6.1$$$Fixes$$$WebGPU$$$Removed code that prevented WebGPU from running on release channel builds$$$Misc$$$Re-implemented support for Unity global menu on Linux; with thanks to the Arch Linux maintainers$$$Fixed an issue where the Install update option in about:addons did not appear after a manual update check when automatic updates were disabled$$$Fixed an issue where the Restart command was not working on Linux and Windows (macOS unaffected)$$$Fixed an issue where the Restart command was misaligned on Linux and Windows when icons in menus were disabled$$$Disabled Captive Portal detection; let the operating system handle it instead; one less network request to Mozilla$$$Waterfox string updates$$$Reordered and grouped entries in language files for improved readability and maintainability; no functional changes intended$$$Restored two Tree Vertical Tabs strings inadvertently dropped during the reorg:$$$tree-auto-collapse-expand-subtree-on-attach (.label; .accesskey)$$$tree-auto-collapse-expand-subtree-on-select (.label; .accesskey)$$$Private Tabs improvements$$$New preference to control button visibility$$$$$$browser.privateTab.showNewTabButton$$$Controls the New Private Tab button next to the New Tab button$$$Applies instantly in both horizontal and vertical tab layouts$$$Is now false by default; toggle to true to enable$$$Privacy enhancements for Private Tabs$$$$$$Search suggestions are disabled in the address bar for Private container tabs$$$Neither remote engine suggestions nor local form history suggestions will appear$$$Search terms from Private container tabs are no longer saved$$$Form history entries are not written$$$Input/adaptive history is not written$$$The address bar view is cleared when switching into a Private container tab to avoid showing stale entries
Waterfox x64 Version 115.15.0.8984
G6.0.18$$$Changes$$$Security fixes1.$$$Fixed low resolution app icon on Windows. @goodusername123$$$Updated Emoji to support v15.1. @goodusername123$$$Moved the position of Tabs Sidebar prefs to below Search. @black7375
Waterfox x64 Version 128.14.0.3291
6.5.11$$$Fixes$$$Latest security fixes1.$$$Note$$$This will be the final release based on ESR 128; the next will be v6.6 and move to ESR 140.$$$Footnotes$$$MFSA 2025-58 ?
Waterfox x64 Version 128.14.0.3291
6.5.11$$$Fixes$$$Latest security fixes1.$$$Note$$$This will be the final release based on ESR 128; the next will be v6.6 and move to ESR 140.$$$Footnotes$$$MFSA 2025-58 ?
Waterfox x64 Version 115.13.0.8949
G6.0.17$$$Changes$$$Security fixes1. Link will go live Tuesday 9th July.$$$Upcoming Changes$$$Sign up to get access to Waterfox Privacy Search. We are currently testing in a closed Alpha; which will then be opened to general access in a Beta. Note: As it currently stands; this is a separate and optional product that will not be included in Waterfox.
Waterfox x64 Version 115.13.0.8928
G6.0.16$$$Changes$$$Status bar text is now vertically aligned; instead of being completel misaligned. Thanks to @black7375$$$Updates to the tabs sidebar (1.0.2).$$$Improved tab organization: Users can now pin tabs and navigate between them using keyboard shortcuts. This makes it easier to keep track of multiple open tabs and switch between them quickly.$$$Enhanced scrolling: The sidebar now supports smooth scrolling; which provides a more fluid and responsive user experience.$$$Improved communication: Changes have improved communication between the sidebar and the background script. This should result in a more stable and reliable user experience.$$$Performance improvements: Changes should result in better performance when updating the size and position of tabs in the sidebar.$$$Security fixes1.
Waterfox x64 Version 115.11.0.8914
G6.0.15$$$Changes$$$Updates to the tabs sidebar (1.0.1).$$$Fixed an infinite loop that was increasing memory and CPU usage$$$New functionality around collapsing trees$$$Performance improvements by throttling expensive operations$$$Enhancements to tab moving; attaching and detaching$$$New overflow/underflow detection utility$$$Preparation for better compatibility with future Gecko versions (removal of legacy overflow events)
Waterfox x64 Version 115.11.0.8899
G6.0.14$$$Changes$$$The minimum CPU requirement has now been loosened. Any x86-64 processors with support for SSE3 should now be able to run Waterfox1.$$$Various UI bug fixes.$$$Updates to the tabs sidebar.$$$Keep sidebar showing after leaving fullscreen mode.$$$Respect user’s choice for browser.tabs.insertAfterCurrent and browser.tabs.insertRelatedAfterCurrent.$$$Security fixes1.
Waterfox x64 Version 128.10.0.3
6.5.7$$$Fixes$$$Latest security fixes1.$$$Vertical Tabs improvements:$$$Better favicon handling and loading performance$$$Better handling with the bookmarks sidebar and library windows$$$Fixed issues with popup menus and tab previews$$$Improved stability for private browsing windows$$$Enhanced drag-and-drop behavior for moving tabs
Waterfox x64 Version 128.10.0.3
6.5.7$$$Fixes$$$Latest security fixes1.$$$Vertical Tabs improvements:$$$Better favicon handling and loading performance$$$Better handling with the bookmarks sidebar and library windows$$$Fixed issues with popup menus and tab previews$$$Improved stability for private browsing windows$$$Enhanced drag-and-drop behavior for moving tabs
Waterfox x64 Version 115.11.0.8880
G6.0.13$$$Changes$$$Mojeek is now available as a search engine in Waterfox.$$$The Sidebar has seen multiple bug fixes and improvements. If you want to completely hide the feature; you can navigate to about:config; search for browser.sidebar.disabled and toggle the value to true.$$$Tree of tabs options will no longer show if not enabled.$$$Fixed various visual issues.$$$The sidebar no longer erroneously appears as an extension.
Waterfox x64 Version 115.11.0
Changes$$$The Waterfox sidebar is now available by default. There have been many bug fixes an improvements since the previous release; thanks to everyone who reported them!$$$You now have the option to hide the “close” button on tabs; using the preferences browser.tabs.closeButtons.$$$Security fixes1.
Waterfox x64 Version 128.9.0.2331
6.5.6$$$Fixes$$$Updated JPEG-XL library to fix two security issues.$$$We temporarily disabled WASM sandboxed libraries for v6.5.5 due to build bustage in our release build pipeline. This has now been reverted due to fixing the underyling issues.$$$Latest security fixes1.$$$Footnotes$$$MFSA 2025-17 ?
Waterfox x64 Version 128.9.0.2331
6.5.6$$$Fixes$$$Updated JPEG-XL library to fix two security issues.$$$We temporarily disabled WASM sandboxed libraries for v6.5.5 due to build bustage in our release build pipeline. This has now been reverted due to fixing the underyling issues.$$$Latest security fixes1.$$$Footnotes$$$MFSA 2025-17 ?
Waterfox x64 Version 115.10.0
Changes$$$Security fixes1.$$$You can now start testing the Waterfox Sidebar. Go to about:config; search for browser.sidebar.disabled and set the value to false. Please submit any feedback to the Issues page.$$$Unless any major issues crop up; the next release of Waterfox will include the sidebar by default. Please note we won’t stop working on it until then! Improvements are continuous; almost daily.
Waterfox x64 Version 115.9.0
Changes$$$Security fixes1.$$$You can now browse and attempt to install WebExtensions from the Chrome Web Store. Please note; not all extensions are compatible.$$$Fixed up some poorly written code.
Waterfox x64 Version 128.7.0.11
6.5.4$$$Fixes$$$Latest security fixes.$$$Known Issues$$$The Restart button is missing on Linux and Windows.
Waterfox x64 Version 115.7.0
Changes$$$On Windows; you can now switch to native scrollbars by changing widget.non-native-theme.enabled to false.$$$Emoji support updated to 15.0.$$$Security fixes1.$$$Fixes$$$You should now be able to Refresh your profile in about:support.$$$NVIDIA Super Resolution should now work correctly; when toggling gfx.webrender.super-resolution.nvidia to true.$$$Upcoming Changes$$$Privacy enhancements to some of the most popular search engines (wink wink; nudge nudge) are also in the pipeline; with more to be revealed soon. Aiming for January Beta tests.
Waterfox x64 Version 115.5.0
Updates$$$DNS over Oblivious HTTP is now powered by Fastly! Read more.$$$This should mean you should experience almost no performance penalty for using DoOH.$$$Changes$$$You can now choose to disable closing windows or tabs with Ctrl+W by setting browser.closeShortcut.disabled to true in about:config. @franklx$$$Improved support for JPEG XL. Waterfox can now act as the default image viewer for such image files. @goodusername123$$$Waterfox will now run with hardware acceleration on VMware hosts. @goodusername123$$$Security fixes1.$$$Fixes$$$Waterfox company information and versioning should now show BrowserWorks Ltd and the display version properly in Control Panel. A re-install with the latest installer is required.$$$Waterfox will now trust its own signed binaries in about:third-party. @goodusername123$$$Upcoming Changes$$$Privacy enhancements to some of the most popular search engines (wink wink; nudge nudge) are also in the pipeline; with more to be revealed soon.
Waterfox x64 Version 115.4.1
Changes$$$You can now disable Oblivious DNS via the Preferences page. Go to about:preferences ? Privacy & Security ? DNS over HTTPS.$$$The Linux tarball now extracts into a subdirectory named waterfox; rather than into the current directory.$$$Waterfox will no longer decode URLs when copying them. This should allow easier sharing.$$$Fixes$$$On pages that try to load mixed content; Waterfox will attempt to upgrade non secure content.$$$When closing multiple tabs to the left or right; Waterfox will now show the correct close dialogue.$$$If DNS requests take too long; Waterfox will fallback to your default DNS much quicker.
Waterfox x64 Version 102.15.0
G5.1.12$$$$$$? Fixed$$$$$$(Windows Only) Widevine now works again.$$$?? Changed$$$$$$Various security fixes 1.$$$Build tools updated.$$$? Known Issues$$$$$$Currently; DRM only works on Windows. macOS and Linux to follow. (Fixed in G6).$$$Certain customisation in Look & Feel do not work.$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser. (Fixed in G6).
Waterfox x64 Version 102.14.0
G5.1.10$$$?? Changed$$$$$$Various security fixes 1.$$$? Known Issues$$$$$$Currently; DRM only works on Windows. macOS and Linux to follow.$$$Certain customisation in Look & Feel do not work.$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser.
Waterfox x64 Version 102.13.0
G5.1.9$$$INFO$$$Waterfox is now independent again. Read the blog post here.$$$$$$?? Changed$$$$$$Various security fixes 1.$$$? Known Issues$$$$$$Currently; DRM only works on Windows. macOS and Linux to follow.$$$Certain customisation in Look & Feel do not work.$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser.
Waterfox x64 Version 102.12.0
G5.1.7$$$:::$$$$$$?? Changed$$$$$$Waterfox on Windows now FULLY supports DRM. That means streaming services such as Netflix; Amazon Prime; HBO Max and more will work!$$$? Known Issues$$$$$$macOS does not currently support DRM protected streaming services; but this will be fixed in a subsequent release. (Linxu TBD).$$$Certain customisation in Look & Feel do not work.$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser.
Waterfox x64 Version 102.11.0
?? Changed$$$$$$Various security fixes 1.$$$? Known Issues$$$$$$Certain customisation in Look & Feel do not work.$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser.
Waterfox x64 Version 102.10.0
?? Changed$$$$$$Various security fixes 1.$$$? Known Issues$$$$$$Certain customisation in Look & Feel do not work.$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser.
Waterfox x64 Version 102.9.0
?? Changed$$$$$$Various security fixes 1.$$$? Known Issues$$$$$$Certain customisation in Look & Feel do not work.$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser.
Waterfox x64 Version 102.7.0
INFO$$$Waterfoxs custom look and feel now applies to all themes by default. You can disable or modify this by going to the Preferences page ? Look & Feel.$$$$$$? Fixed$$$$$$Issue playing Netflix and similar DRM protected websites have now resolved. If its not working straight away; you can update the DRM plugin by going to the Preferences page ? General ? Files and Applications and un-check Play DRM-controlled content. Wait for a few seconds; then re-check the box. The DRM plugin should update.$$$Drag space is now disabled by default (that extra space above your tabs; so you can drag the window around).$$$The status bar colour now matches the navigation bar.$$$?? Changed$$$$$$Various security fixes 1.$$$? Known Issues$$$$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser.
Waterfox x64 Version 102.5.0
G5.1$$$INFO$$$Waterfoxs custom look and feel now applies to all themes by default. You can disable or modify this by going to the Preferences page ? Look & Feel.$$$$$$? New$$$$$$You can modify Waterfoxs look and feel by heading to about:preferences ? Look & Feel. You can set various default presets; change the way tabs behave and much more!$$$? Fixed$$$$$$Desktop counterparts to your WebExtensions will now be able to communicate with Waterfox once again!$$$?? Changed$$$$$$Various security fixes 1.$$$? Known Issues$$$$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$If you cannot select text in the search bar with the mouse cursor please go to about:config; set layout.forms.input-type-search.enabled to false and restart the browser.
Waterfox x64 Version 102.3.0
? New$$$$$$You can now verify files downloaded from the downloads page; by appending .sha512 to the end of the URL. This will download a SHA512 checksum.$$$? Fixed$$$$$$There was an issue when upgrading from G3 onward where your theme would get reset to default. This is no longer the case.$$$Various preferences were incorrectly configured and these have now been changed.$$$? Known Issues$$$$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$Previous release notes for users coming from G3 and G4:$$$$$$? New$$$$$$You can now toggle to view password you are typing in.$$$image$$$?? Changed$$$$$$Due to better understanding of compiler flags; the minimum supported processor version has dropped and is now set at SSSE3[1].$$$More speed! Waterfox now has further speed improvements on all platforms; with the largest increase on Linux.$$$You can now Sync your settings.$$$The search input type is now enabled.$$$?? Notices$$$$$$If you use custom CSS and JS; you will want to disable Waterfox theme changes by toggling userChrome.theme.enable to false.
Waterfox x64 Version 102.3.0
? New$$$$$$You can now verify files downloaded from the downloads page; by appending .sha512 to the end of the URL. This will download a SHA512 checksum.$$$? Fixed$$$$$$There was an issue when upgrading from G3 onward where your theme would get reset to default. This is no longer the case.$$$Various preferences were incorrectly configured and these have now been changed.$$$? Known Issues$$$$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$Previous release notes for users coming from G3 and G4:$$$$$$? New$$$$$$You can now toggle to view password you are typing in.$$$image$$$?? Changed$$$$$$Due to better understanding of compiler flags; the minimum supported processor version has dropped and is now set at SSSE3[1].$$$More speed! Waterfox now has further speed improvements on all platforms; with the largest increase on Linux.$$$You can now Sync your settings.$$$The search input type is now enabled.$$$?? Notices$$$$$$If you use custom CSS and JS; you will want to disable Waterfox theme changes by toggling userChrome.theme.enable to false.
Waterfox x64 Version 102.3.0
? New$$$$$$You can now verify files downloaded from the downloads page; by appending .sha512 to the end of the URL. This will download a SHA512 checksum.$$$? Fixed$$$$$$There was an issue when upgrading from G3 onward where your theme would get reset to default. This is no longer the case.$$$Various preferences were incorrectly configured and these have now been changed.$$$? Known Issues$$$$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$Previous release notes for users coming from G3 and G4:$$$$$$? New$$$$$$You can now toggle to view password you are typing in.$$$image$$$?? Changed$$$$$$Due to better understanding of compiler flags; the minimum supported processor version has dropped and is now set at SSSE3[1].$$$More speed! Waterfox now has further speed improvements on all platforms; with the largest increase on Linux.$$$You can now Sync your settings.$$$The search input type is now enabled.$$$?? Notices$$$$$$If you use custom CSS and JS; you will want to disable Waterfox theme changes by toggling userChrome.theme.enable to false.
Waterfox x64 Version 102.3.0
? New$$$$$$You can now verify files downloaded from the downloads page; by appending .sha512 to the end of the URL. This will download a SHA512 checksum.$$$? Fixed$$$$$$There was an issue when upgrading from G3 onward where your theme would get reset to default. This is no longer the case.$$$Various preferences were incorrectly configured and these have now been changed.$$$? Known Issues$$$$$$Upgrading to G5 resets custom container tabs in certain situations. We have investigated but have been unable to find a work around or fix so far.$$$Previous release notes for users coming from G3 and G4:$$$$$$? New$$$$$$You can now toggle to view password you are typing in.$$$image$$$?? Changed$$$$$$Due to better understanding of compiler flags; the minimum supported processor version has dropped and is now set at SSSE3[1].$$$More speed! Waterfox now has further speed improvements on all platforms; with the largest increase on Linux.$$$You can now Sync your settings.$$$The search input type is now enabled.$$$?? Notices$$$$$$If you use custom CSS and JS; you will want to disable Waterfox theme changes by toggling userChrome.theme.enable to false.
