Pier Angelo Vendrame pushed to branch mullvad-browser-148.0a1-16.0-2 at The Tor Project / Applications / Mullvad Browser Commits: d898d977 by Pier Angelo Vendrame at 2026-03-12T12:18:45+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: ===================================== browser/app/profile/001-base-profile.js ===================================== @@ -510,7 +510,13 @@ pref("dom.webmidi.enabled", false); // Bug 41398: Disable Web MIDI API // 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 View it on GitLab: https://gitlab.torproject.org/tpo/applications/mullvad-browser/-/commit/d898... -- View it on GitLab: https://gitlab.torproject.org/tpo/applications/mullvad-browser/-/commit/d898... You're receiving this email because of your account on gitlab.torproject.org.