Pier Angelo Vendrame pushed to branch tor-browser-148.0a1-16.0-2 at The Tor Project / Applications / Tor Browser

Commits:

• 6ecff809
  by Pier Angelo Vendrame at 2026-03-12T11:41:41+01:00

  fixup! Firefox preference overrides.
  
  BB 43769: Update the comment about overscroll.
  
  We had an issue about gating overscroll behind RFP.
  However, as far as I can tell, it cannot really be measured.
  So, disabling it is basically a defense-in-depth, so I updated the
  comment to include more information about this.
  

1 changed file:

• browser/app/profile/001-base-profile.js

Changes:

 // Defense-in-depth (already the default value) from Firefox 119 or 120.

 pref("media.devices.enumerate.legacy.enabled", false);

 #ifndef ANDROID

-// Bug 42138: Disable touch-based overscroll UX

+// tor-browser#43769,42010,42138: Disable overscroll UX.

+// Firefox has an overscroll effect that appears only when using a touch screen

+// or a touchpad. So, theoretically it is a behavior difference also for desktop

+// users.

+// However, we could not find a way to actually measure this effect.

+// Still, the UX impact on disabling this animation is minimal, therefore we do

+// it just in case there is an actual way to measure it.

 pref("apz.overscroll.enabled", false);

 #endif

 pref("dom.vr.enabled", false); // Bug 21607: Disable WebVR for now