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1.2.7 — Tab groups, homepage improvements and privacy controls

Features include the Firefox 155.0.1 engine, tab groups enabled by default, a customisable homepage, classic Fennec wallpapers, importing and PDF tools, and stronger privacy safeguards.

2 min read

Toggle table of contents. Current section: Updated browser engine

Updated browser engine

  • The underlying Firefox browser engine has been updated to version 155.0.1.

Tabs and homepage

  • Tab groups are now enabled by default. This includes the ability to group tabs by dragging and dropping them, reorder them live, and access introductory guidance.
  • The tab manager’s opening animation has been enabled.
  • The homepage now opens in new tabs by default.
  • Homepage customisation, the improved shortcut adding experience and swipeable shortcut pages have been enabled.
  • Collections remain available alongside the new tab group features.
  • Scroll driven toolbar animations have been enabled to hide and reveal the toolbar while browsing.

Wallpapers and appearance

  • Five classic Fennec wallpapers have been added: Algae, Colorful Bubbles, Dark Dune, Dune and Fiery Red. Each one comes in portrait and landscape versions and can be accessed offline. Thanks to Павло Погонець.
  • The mismatched tab strip and status bar overlay colours when using custom or black themes have been fixed.
  • The accent colours of switches and checkboxes have been corrected to follow the selected theme.
  • The homepage wordmark rendering has been fixed and the branding assets have been updated for the refreshed interface.
  • The selection borders for custom wallpapers have been updated.

Importing and PDFs

  • Bookmark and password importing are enabled by default.
  • The new PDF viewer tools have been enabled.

Privacy and control

  • Local Network Access protections are enabled by default, including features that block requests and trackers.
  • Safeguards against background marketing notifications, experiments, uninstall surveys and unwanted telemetry have been strengthened.
  • Saved experimental preferences can no longer re-enable features disabled by Waterfox’s privacy policy.
  • Third-party icon manifest lookups and supplied remote image URLs have been removed from the affected shortcut icon paths, while normal website favicon loading has been retained.
  • By default, remote crash report request prompts are now hidden. However, manual crash reporting remains available.
  • An issue has been fixed where Secret Settings could remain visible in release builds due to a preference saved by an older installation.

Existing preferences

New defaults apply where no saved preference exists. Your existing choices for configurable features are preserved. The DNS-over-HTTPS protection modes and address sync region eligibility remain unchanged; however, features disabled by Waterfox’s privacy policy remain unavailable.