Full Changelog: https://github.com/BrowserWorks/waterfox/commits/6.7.5
Waterfox
BrowsersDesktopA privacy-focused browser built on Firefox.
Release activity
| Jul | Aug | Sep | Oct | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunday | No releases on Jun 28, 2026 | No releases on Jul 5, 2026 | No releases on Jul 12, 2026 | No releases on Jul 19, 2026 | No releases on Jul 26, 2026 | No releases on Aug 2, 2026 | No releases on Aug 9, 2026 | No releases on Aug 16, 2026 | No releases on Aug 23, 2026 | No releases on Aug 30, 2026 | No releases on Sep 6, 2026 | No releases on Sep 13, 2026 | No releases on Sep 20, 2026 | No releases on Sep 27, 2026 | No releases on Oct 4, 2026 | No releases on Oct 11, 2026 |
| Monday | No releases on Jun 29, 2026 | No releases on Jul 6, 2026 | No releases on Jul 13, 2026 | No releases on Jul 20, 2026 | No releases on Jul 27, 2026 | No releases on Aug 3, 2026 | No releases on Aug 10, 2026 | No releases on Aug 17, 2026 | No releases on Aug 24, 2026 | No releases on Aug 31, 2026 | No releases on Sep 7, 2026 | No releases on Sep 14, 2026 | No releases on Sep 21, 2026 | No releases on Sep 28, 2026 | No releases on Oct 5, 2026 | No releases on Oct 12, 2026 |
| Tuesday | No releases on Jun 30, 2026 | No releases on Jul 7, 2026 | No releases on Jul 14, 2026 | 2 releases on Jul 21, 2026 | No releases on Jul 28, 2026 | No releases on Aug 4, 2026 | No releases on Aug 11, 2026 | No releases on Aug 18, 2026 | No releases on Aug 25, 2026 | No releases on Sep 1, 2026 | No releases on Sep 8, 2026 | No releases on Sep 15, 2026 | 1 release on Sep 22, 2026 | No releases on Sep 29, 2026 | No releases on Oct 6, 2026 | |
| Wednesday | No releases on Jul 1, 2026 | 2 releases on Jul 8, 2026 | No releases on Jul 15, 2026 | No releases on Jul 22, 2026 | No releases on Jul 29, 2026 | No releases on Aug 5, 2026 | No releases on Aug 12, 2026 | 1 release on Aug 19, 2026 | No releases on Aug 26, 2026 | No releases on Sep 2, 2026 | 1 release on Sep 9, 2026 | No releases on Sep 16, 2026 | No releases on Sep 23, 2026 | 1 release on Sep 30, 2026 | No releases on Oct 7, 2026 | |
| Thursday | No releases on Jul 2, 2026 | 1 release on Jul 9, 2026 | No releases on Jul 16, 2026 | No releases on Jul 23, 2026 | 1 release on Jul 30, 2026 | No releases on Aug 6, 2026 | No releases on Aug 13, 2026 | No releases on Aug 20, 2026 | 1 release on Aug 27, 2026 | No releases on Sep 3, 2026 | No releases on Sep 10, 2026 | No releases on Sep 17, 2026 | No releases on Sep 24, 2026 | No releases on Oct 1, 2026 | No releases on Oct 8, 2026 | |
| Friday | No releases on Jul 3, 2026 | No releases on Jul 10, 2026 | No releases on Jul 17, 2026 | No releases on Jul 24, 2026 | No releases on Jul 31, 2026 | No releases on Aug 7, 2026 | No releases on Aug 14, 2026 | No releases on Aug 21, 2026 | No releases on Aug 28, 2026 | No releases on Sep 4, 2026 | No releases on Sep 11, 2026 | No releases on Sep 18, 2026 | No releases on Sep 25, 2026 | No releases on Oct 2, 2026 | No releases on Oct 9, 2026 | |
| Saturday | No releases on Jul 4, 2026 | No releases on Jul 11, 2026 | No releases on Jul 18, 2026 | No releases on Jul 25, 2026 | No releases on Aug 1, 2026 | No releases on Aug 8, 2026 | No releases on Aug 15, 2026 | No releases on Aug 22, 2026 | No releases on Aug 29, 2026 | No releases on Sep 5, 2026 | 1 release on Sep 12, 2026 | No releases on Sep 19, 2026 | No releases on Sep 26, 2026 | No releases on Oct 3, 2026 | No releases on Oct 10, 2026 |
16 releases since Apr 21, 2026, busiest day 2
Changelog
Added 4
- RSS feeds and Live Bookmarks are now available, allowing you to preview and follow RSS and Atom feeds using the feed icon in the address bar to subscribe to Live Bookmark folders
- Disable AI in search results option under Settings → Search, enabled by default to hide AI answers from supported search engines
- Proxied search suggestions can now be toggled off under Settings → Search
- New Windows option to hide the system now playing overlay while keeping media keys functional via media.hardwaremediakeys.overlay.enabled setting
Changed 4
- 1.org Charitable Search engine has been removed due to ended partnerships with System1
- Bing and Ecosia search engine icons have been refreshed
- Built-in JPEG-XL decoder updated from 0.6.0 to 0.7.4
- Builds no longer bundle the ONNX runtime
Fixed 1
- Disabled an old, weak encryption cipher that caused some websites to refuse to load
Added 2
- Auto-hide vertical tabs to keep the sidebar hidden until you move your mouse to the edge of the window
- Add option under Settings → Appearance → Tab bar to prevent audio indicators from changing tab widths
Changed 3
- Name new backup folders Restore Waterfox while still supporting previously created backup folders
- Improve compatibility with JPEG XL images
- Restore the standard new tab page layout while keeping recommended stories and sponsored content disabled
Fixed 11
- Restore country flag emoji on Windows
- Fix a problem that prevented older extensions, including Roomy Bookmarks Toolbar redux and Tab Mix Plus, from loading
- Fix an issue where every vertical tab showed the active tab highlight so only the selected tab is now highlighted
- Restore the missing options to fade unloaded tabs and grey out their icons in the Nova and Proton styles
- Keep tab close buttons accessible when the vertical sidebar is narrowed
- Fix issues where the New Private Tab button made the sidebar too wide or remained visible when disabled
- Apply bookmark menu spacing options to the Menu Bar's Bookmarks dropdown
- Fix the search engine selector retaining rounded corners when square buttons are enabled
- Fix an issue where typing into a custom new tab could leave part of the previous address behind
- Correct the remaining Firefox references in Waterfox branding, including the Customize Waterfox Home button
- Fix conflicting keyboard shortcuts in the French right click menu
Security 1
- Incorporate the security updates covered by Mozilla Foundation Security Advisory 2026-93
Added 1
- Added access to more tree controls directly in Settings, including options for indentation and nesting limits
Changed 11
- Improved the restoration of saved tab trees, including tabs that load in the background and trees inside tab groups
- Moving branches containing split-view tabs now preserves both panes and their child tabs more effectively
- Corrected the indentation and alignment so that parent tabs, children and siblings are easier to distinguish
- Improved the visibility and labels of the expand/collapse controls
- Reduced unnecessary work when restoring and displaying tab trees
- Changed the option to automatically collapse other trees when switching between them to off by default
- When an unloaded background tree is expanded or collapsed, its parent tab is no longer unnecessarily loaded
- Switching to horizontal tabs no longer creates new tree-only parent/group pages
- Improved cancellation of hover expansion when the pointer leaves the window
- Unloaded tabs now keep their colourful icons by default instead of displaying greyscale icons
- Tab titles are no longer italicised by default
Fixed 8
- Fixed an issue where newly opened tabs would sometimes remain invisible until another tab was selected, including links opened from pinned tabs
- Fixed an issue where dragging a branch would sometimes show where it would move without actually moving it, along with incorrect placement and ordering
- Fixed the opening of bookmarked trees in new windows, including in private windows, to ensure that bookmarks retain their order and nesting
- Fixed an issue where pinned tabs would disappear or become unclickable when displayed with their titles
- Fixed the unexpected collapse of the hover-expanded sidebar while a right-click menu was open
- Fixed an issue where full-screen video would leave the sidebar visible and shift the video to one side
- Fixed the issue of the collapsed sidebar becoming too narrow for tab icons when the sidebar controls were hidden
- Fixed the clipped text and misaligned icons on the New Private Tab button in the collapsed sidebar
Security 1
- Incorporated the security updates outlined in Mozilla Foundation Security Advisory 2026-85
Added 16
- Added 121 interface customization options across ten groups in the Appearance pane including tab bar, tabs, toolbars, bookmarks, icons, rounding, and theme styling
- Added tab bar customization options including stretching tabs to fill width, hiding tab or title bar container, shrinking background tabs, adjusting width and height, customizing drag space, centering tab contents, and tab counter
- Added tabs customization options including corner style variants, padding, separators, new tab button style, context line, close button behavior, container tab markers, sound indicator placement, and faded unloaded tabs
- Added toolbars customization including hide or auto-hide navigation bar, combine back and forward buttons, adjust button padding, and adjust floating find bar and infobar padding
- Added bookmarks customization including multi-row toolbar, auto-hide, centering, icon and label visibility, menu padding, and counters
- Added icon theme choices between Photon or full-coverage for menu, context menu, global menu, and panel icons
- Added rounding customization to square off tabs, toolbars, buttons, and interface elements
- Added theme, content, new tab and player customization for color, transparency, and animation styling
- Added WebRTC peer connection and referrer header policy controls in new Advanced web privacy group
- Added Load images automatically and Enable JavaScript controls in new Web content group
- Added group tabs feature allowing tree parents to be lightweight named pages with children management and closure options
- Added split view and native tab groups coexistence with trees
- Added bookmark folder trees to rebuild original tree structure when opening folders
- Added context menu commands Reload Tree, Mute Tree, Unmute Tree, Unload Tree, Collapse Tree Recursively, Expand Tree Recursively, Copy Tree as Links, and Copy Descendants as Links
- Added tab position chooser offering options for independent, child, last sibling, or next sibling positioning
- Added prompt when dropping links onto tabs to choose between loading in place or opening as child
Changed 7
- Replaced three-way Enable Waterfox theme customisations mode with single Load interface customisations toggle
- Moved density picker to Appearance menu alongside browser style and palette controls
- Renamed referrer policy options to Never send a referrer, Send for document navigations only, and Send for navigations and page resources
- Changed default behavior when closing a parent from promoting all children to promoting only the first child
- DRM is now off by default with opt-in required when playing protected streams
- Address and payment card autofill is now available regardless of user region
- Privacy controls now display which extension is controlling them
Removed 1
- Disabled Firefox network connectivity checking service since captive portal feature was disabled
Added 10
- Nova browser style option, a new sharper Waterfox style with a brighter active tab line
- Apply colour palettes to built-in pages such as Settings and other internal pages
- Add dedicated settings panel for the built-in ad blocker
- Display status hero in ad blocker panel showing whether protection is active, paused, in partner mode or off for the site
- Show separate counts for ads, trackers and pop-ups with proportional bars in ad blocker panel
- Inject anti-adblock and annoyance scriptlets before page scripts run
- Add exception types allowing sites to be allowed broadly or narrowly, with exceptions added in private windows lasting only for the session
- Add full support for legacy add-ons including reading 'install.rdf' manifests, running 'bootstrap.js', honouring 'chrome.manifest' overlay entries and supporting add-ons that require a restart
- Allow installation of system add-ons without Mozilla signature and install companion app manifests for native messaging extensions on macOS and Linux
- Fully localise the first-run onboarding
Changed 12
- Upgrade from Gecko ESR 140 to Gecko ESR 153 incorporating a year's worth of upstream engine, performance, and security improvements
- Replace accent colour setting with twelve palettes ranging from Smoke and Ash to Sun, Spark, Flame, Lavender, Lagoon and Pine, each with light and dark variants
- Use Archivo font for headings across the interface
- Integrate tree-style tabs directly into the vertical tab strip instead of as a bundled extension
- Save tree structure through the browser's own session store with existing trees and settings migrating on upgrade
- Add settings under 'Tabs and Browsing' for how new tabs attach, what happens when closing a parent, double-click behaviour, branch auto-collapse, mute propagation and nesting depth
- Move ad blocking to its own settings pane separate from Privacy and Security
- Increase redirect resources from 17 to 62 to reduce blocked requests breaking pages
- Update blocking engine to adblock-rust 0.13.2
- Rework preference handling so that disabling or uninstalling a legacy add-on no longer affects existing settings, browser defaults or locked preferences
- Redesign first-run onboarding as a single page with five steps: language selection, importing data, customising appearance, configuring tab layout, and accessing privacy settings
- Rewrite Firefox profile migrator to bring over bookmarks, history, form data, cookies and passwords
Removed 3
- Remove the long list of small tweaks in the Look and Feel pane from Settings, keeping only seven options for Photon
- Remove large set of keyboard commands, custom CSS editor and API for other extensions from tree tabs integration
- Remove screens recommending extensions and displaying Android QR code from onboarding
6.7.0-beta.3
Pre-releaseAdded 4
- Extended legacy extension support
- Added official Linux package repositories with both x86_64 and ARM64 DEB and RPM packages for Ubuntu, Debian, Fedora, and Mageia
- Added a redesigned About dialog built on the Waterfox design
- Enabled the global menu bar on Linux desktops that provide one, including on Wayland
Changed 4
- Re-enabled Ultra Protection by default for new profiles with DNS lookups traveling over Oblivious HTTP through the Waterfox relay
- Allowed the media cache's in-memory layer to grow with available RAM instead of stopping at a fixed ceiling
- Restored the View Image Info context menu item
- Redesigned the macOS disk image as a fully signed and notarised installer image
Fixed 2
- Opening a link in a new private tab from the context menu no longer opens it in a normal tab instead
- The major upgrade welcome dialog no longer displays raw label identifiers instead of its text
Changed 5
- Update country based search configuration to use Qwant in supported regions and DuckDuckGo elsewhere, with Qwant as fallback
- Migrate users from 1.org default and other automatically selected defaults to appropriate regional defaults
- Remove obsolete search overrides that could interfere with regional defaults or suppress Waterfox search attribution parameters
- Stop forcing the experimental HTTP Idempotency-Key header on POST requests
- Proxy search suggestion requests that would go to Google through Waterfox Private Search to prevent direct connection and preserve IP address and request metadata
Fixed 1
- Attempt to fix Chase website compatibility when Waterfox's built-in content blocker is enabled
Security 1
- Include fixes covered by Mozilla Foundation Security Advisory 2026-70
6.7.0-beta.2
Pre-releaseAdded 2
- Added initial support for restartless legacy extensions using install.rdf, bootstrap.js, and compatible chrome.manifest entries
- Enabled publication of prerelease x86_64 DEB and RPM packages through the Waterfox OBS repositories
Changed 3
- Updated Qwant's regional availability, search parameters, and branding
- Disabled automatic enforcement of soft-blocked add-ons
- Disabled automatic generation of HTTP Idempotency-Key headers by default
Fixed 8
- Improved tree tabs session restoration, undo-close handling, and migration from legacy tree tab settings
- Corrected child-tab placement and tree ordering
- Fixed pinning, collapsing, subtree depth limits, and parent-closing behaviour in tree tabs
- Fixed cross-window drag-and-drop and tab moves initiated by extensions or context menus
- Prevented selected tabs from remaining hidden inside collapsed trees
- Refreshed expand and collapse controls with RTL and reduced-motion support
- Fixed Chase website compatibility when Waterfox's built-in content blocker is enabled
- Fixed selected Waterfox colour palettes sometimes being overwritten by a later default-theme update
Changed 1
- Change default search engine to Qwant in 26 regions including most of Europe, Australia, Canada, Japan, Korea, Singapore, the UK, and the US
Fixed 3
- Correct Qwant being selected as the default in unsupported regions
- Force Qwant AI answers/summaries to disabled by default
- Fix unsupported locale-country query values such as es_US which would result in Qwant refusing to return results
Security 1
- Include all security fixes that have landed to date for Firefox ESR 140.13
6.7.0-beta.1
Pre-releaseAdded 6
- Tree tabs are now a native part of the browser built directly into the vertical tab strip, with settings for new tab attachment, parent closure behavior, double-click behavior, branch auto-collapse, mute propagation, and nesting depth
- Nova is a new browser style option alongside Proton and Photon, with a sharper appearance and brighter active tab line
- Twelve color palettes replace the old three-option accent color setting, with light and dark variants that follow system theme and apply to built-in pages
- Qwant joins the search partner list with ads allowed on qwant.com by default
- Firefox profile migrator installs companion app manifests for password managers and similar tools on macOS and Linux
- Translation models download on demand so page translation is no longer limited to bundled language pairs
Changed 10
- Move from Gecko ESR 140 to Gecko ESR 153, bringing upstream engine, performance, and security work
- Ad Blocking moves to its own pane in Settings out of Privacy and Security
- Anti-adblock and annoyance scriptlets now inject before page scripts run to fix sites that raced the blocker
- Redirect resources grow from 17 to 62 to reduce page breakage from blocked requests
- Exceptions added in private windows last only until the session ends and are kept separate from normal exceptions
- Ad blocking now verifies blocked page origin, caps list download sizes, refuses redirects, and performs atomic cache writes
- Search default changes from 1.org to Qwant in 26 regions and DuckDuckGo elsewhere
- Onboarding setup is rebuilt to cover browser style and density, theme color, tab arrangement, tab strip placement, privacy defaults, and data import, with full localization
- Firefox profile migrator is rewritten to bring over bookmarks, history, form data, cookies, and passwords
- Certificate revocation data and add-on blocklist now update over the network instead of being frozen at build time
Removed 2
- Onboarding screens recommending extensions and showing Android QR code are removed
- Tree tabs no longer support the full set of keyboard commands, custom CSS editor, and extension API from the previous extension
Changed 3
- Set Qwant as the default search engine in 26 regions including most of Europe, Australia, Canada, Japan, Korea, Singapore, the UK, and the US
- Use DuckDuckGo as the default search engine in regions where Qwant is not yet supported
- Apply the ad blocker allowance for search ads to Qwant as the new default search provider
Security 1
- Include all security fixes that have landed to date for Firefox ESR 140.13
Security 1
- Fix remaining relevant issues from Mozilla Foundation Security Advisory 2026-58 to bring the 6.6 series fully in line with the advisory
Added 1
- Added a new Always store cookies/data for this site toggle to the site information panel
Changed 4
- Adjusted how Waterfox presents itself to websites to improve compatibility with Chase and Discord
- Improved reliability of handling modern filter lists in the built-in ad blocker
- Reduced likelihood of pages briefly showing ads or annoyances before the ad blocker catches up after opening Waterfox
- Reduced background work performed by the ad blocker when a page starts loading
Fixed 2
- Worked around a bug introduced in macOS 26.5 that could cause Waterfox and other Gecko-based browsers to crash
- Fixed ad blocker to correctly pick up site-specific ad-blocking fixes instead of ignoring or misreading them
Changed 5
- Internationalised domain names are now handled and displayed by the browser as unicode, instead of always being shown as punycode
- Dithering is now enabled for CSS rendering, which should eliminate visible colour banding on gradients
- Attempted compatibility improvements with sites such as LinkedIn that were not rendering correctly
- Built-in ad blocker is now enabled by default
- Default search engine changed to 1.org
Fixed 1
- Fixed an issue where tracking protection wasn't blocking things properly because the required assets weren't being bundled with the browser
Removed 1
- Startpage removed as a search provider
Added 6
- Added Custom Filter Lists manager dialog to add and remove custom filter list URLs from the UI
- Added search box to Filter Lists screen to quickly find lists
- Added Refresh now button for manual filter list updates
- Added refresh interval dropdown with options 4h, 8h, 12h, 24h, 7d, or default
- Added per list last updated and next refresh information display
- Added source link icon for each filter list
Changed 6
- Changed filter list update logic to respect each list's own Expires value instead of a fixed 12h interval
- Improved cosmetic CSS injection to only run on HTML pages, avoiding breakage on XML or text content
- Improved cosmetic filtering with hard cap on queried DOM elements to prevent runaway processing
- Changed cosmetic filtering to use CSS rule insertion instead of rebuilding the full style text
- Improved ad blocker extension detection to identify conflicting extensions only by known extension IDs, removing pattern matching on name and description
- Optimized network observers to register and unregister based on ad blocker state
Fixed 2
- Improved error handling when loading the ad blocker engine cache
- Improved input sanitization before data is passed to the ad blocker engine
Security 1
- Fixed multiple security vulnerabilities as described in Mozilla Foundation Security Advisory 2026-32
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