It looks like the difference might be in using the Wayland backend (default in the beta and edge channels), versus being an XWayland client (default in the stable channel).
Can you switch back to the stable channel, and test again with `MOZ_ENABLE_WAYLAND=1` ? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1969220 Title: Pinch to zoom not working on Wayland on Jammy Status in Mozilla Firefox: New Status in firefox package in Ubuntu: Triaged Bug description: Firefox running within snap confinement is unable to use the pinch to zoom gesture on 22.04. This is a regression as it does work on 21.10. I had been following https://bugs.launchpad.net/bugs/1964541 as it was suspected that these two issues were linked, however I am using the updated mutter released as a fix for the drag and drop bug but this didn't result in a fix for pinch to zoom. Pinch to zoom does work when using Firefox from the official tarball with the variable MOZ_ENABLE_WAYLAND=1 set. Originally reported on the snapcraft forum:https://forum.snapcraft.io/t/firefox-pinch-to-zoom-not-working- on-22-04/29391 Screen recording attached showing pinch to zoom not working on snap firefox and comparing with the gesture working on mozilla tarball firefox with libinput debug-gui showing the pinch gesture Description: Ubuntu Jammy Jellyfish (development branch) Release: 22.04 $ snap info firefox name: firefox summary: Mozilla Firefox web browser publisher: Mozilla✓ store-url: https://snapcraft.io/firefox contact: https://support.mozilla.org/kb/file-bug-report-or-feature-request-mozilla license: unset description: | Firefox is a powerful, extensible web browser with support for modern web application technologies. commands: - firefox snap-id: 3wdHCAVyZEmYsCMFDE9qt92UV8rC8Wdk tracking: latest/beta refresh-date: 2 days ago, at 18:06 BST channels: latest/stable: 99.0.1-1 2022-04-13 (1232) 163MB - latest/candidate: 99.0.1-1 2022-04-12 (1232) 163MB - latest/beta: 100.0b6-1 2022-04-15 (1244) 163MB - latest/edge: 101.0a1 2022-04-15 (1243) 180MB - esr/stable: 91.8.0esr-1 2022-04-05 (1184) 161MB - esr/candidate: 91.8.0esr-1 2022-03-30 (1184) 161MB - esr/beta: ↑ esr/edge: ↑ installed: 100.0b5-1 (1236) 163MB - mutter: Installed: (none) Candidate: 42.0-3ubuntu2 Version table: 42.0-3ubuntu2 500 500 http://gb.archive.ubuntu.com/ubuntu jammy/universe amd64 Packages To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1969220/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
