Random MB Crashes

[rideandrain]

Over the past 3 weeks or so, MB has been crashing randomly on me. Happens on various websites and after various durations, can't isolate a pattern or obvious cause.

This has happened both while watching YT, as well as when doing general browsing or scrolling without YT at all.
Has happened as quickly as 3 mins, might be as long as after 2 hours of general browsing.

Any advice on how to troubleshoot? Frankly not even sure if its a MB specific issue, but it only happens to MB, FF works as expected.
Does MB capture any crash logs? Could I manually enable it for now?

I'm on the direct download version of MB
MB 13.5.2 (based on Mozilla Firefox 115.14.0esr)
Linux Fedora 40, KDE, Nvidia 560 drivers.

[rideandrain]

Issue is still ongoing, finally managed to capture some logs from journalctl

systemd[14621]: Started app-Mullvad\x20Browser\x28Wayland\[email protected] - Mullvad Browser Setup - Web Browser.
rtkit-daemon[962]: Successfully made thread 16911 of process 16804 (/home/XX/mullvad-browser/Browser/mullvadbrowser.real) owned by '5555' RT at priority 10.
kwin_wayland_wrapper[14703]: error in client communication (pid 16804)
systemd[14621]: app-Mullvad\x20Browser\x28Wayland\[email protected]: Consumed 1min 16.932s CPU time, 2.2M memory peak, 0B memory swap peak.

I was doing general surfing, 2-3 tabs open, nothing intensive, no media playing, yet it crashed in just over a min.
Would appreciate any input to help debug this further, especially the kwin_wayland_wrapper line

[ruihildt]

I have created an issue for the devs directly, see: https://gitlab.torproject.org/tpo/applications/mullvad-browser/-/issues/345