1763428 - Firefox freezes and closes without crash report

Status: UNCONFIRMED

(Firefox :: Session Restore, defect)

Description

[Lyubomir [:mystiquewolf]]

Attachment: log output.txt

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36

Steps to reproduce:

1. Open Firefox
2. Browser starts loading page to restore it / the session

Actual results:

3. Browser freezes and i've tried clicking or scrolling when it freezed.
4. Browser closes while it is freezed without a crash report.

Expected results:

No closing of browser or at least a crash report upon browser closing.

Firefox perf profile: https://share.firefox.dev/3DNL7Ju
Also attaching 2 logs from 2 separate launches of Firefox with the following env vars for log output MOZ_LOG="Widget:5 WidgetPopup:5" and also WAYLAND_DEBUG=1.
I've noticed that the logs output also freezes when the browser freezes.

Comment 1

[Lyubomir [:mystiquewolf]]

Attachment: log output 2.txt

Comment 2

[Lyubomir [:mystiquewolf]]

Operating System: Arch Linux
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.17.1-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i5-8250U CPU @ 1.60GHz
Memory: 7,6 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Firefox::Session Restore' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 4

[Lyubomir [:mystiquewolf]]

Well, this doesn't seem to happen once I've logged out of KDE Plasma and logged in again (without restarting the PC).

Comment 5

[Lyubomir [:mystiquewolf]]

... But i would be happy if someone takes a look to see why it happened in the first place.

Comment 6

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:dao, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 7

[Brindusa Tot, Desktop QA]

Lyubomir, is this still reproducible for you? I don't have a ARCH Linux operating system, to try to investigate more on this issue.

Comment 8

[Lyubomir [:mystiquewolf]]

It isn't reproducible now. But i hope there can be something useful In the perf profile or logs...