Updated today (2021-05-14) to 90.0a1 (2021-05-13) and I'm getting compositor crash on KDE Plasma Wayland (kwin_wayland) every time firefox-nightly is started.
So I figured out that it was related to gfx.webrender.compositor.force-enabled=true
about:config setting.
Opening firefox-nightly on XWayland and setting gfx.webrender.compositor.force-enabled=false
solved the compositor crashing, so I can start the current nightly version as an Wayland client again.
I'm commenting it here just in case someone get to this problem.
Pinned Comments
heftig commented on 2022-07-27 22:26 (UTC)
Instead of building this yourself, please use the repository from https://bbs.archlinux.org/viewtopic.php?id=117157.
Not only do you skip the very time-consuming builds, but the published package also has debug symbols at Mozilla's crash reports service, which helps tremendously with finding or filing bugs for any crashes you get.
I consider this the canonical
firefox-nightly
package for Arch Linux.Alternatively, download Firefox Nightly straight from Mozilla, extract it to a writable place (e.g.
~/.local/firefox-nightly
) and let it update itself using the integrated updater.