1771636 - From version 100 firefox freezes on startup if there was a previous session

Status: RESOLVED INCOMPLETE

(Firefox :: Session Restore, defect)

Description

[mirtobusico]

Attachment: ksnip_20220529-085645.png

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:100.0) Gecko/20100101 Firefox/100.0

Steps to reproduce:

1. start firefox and open three sites in different tabs
2. shutdown the system and reboot; then login
3. firefox is restarted automatically (and freeze)

Framework:
Kubuntu 20.04.4
Firefox 100.0.2

Actual results:

Firefox is freezed on startup

Expected results:

Firefox starts and restore the previous session
(BTW I cannot find the "restore previous session) in the menus

Comment 1

[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 2

[Andre Klapper]

Please see and follow https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

Comment 3

[mirtobusico]

Attachment: after_refresh_firefox.png

Comment 4

[mirtobusico]

Attachment: logout_login_freze.png

Comment 5

[mirtobusico]

Followed the link.
Tried "Refresh firefox" at https://support.mozilla.org/en-US/kb/firefox-wont-start-find-solutions

No luck:

1. open three tabs (see after_refresh_firefox.png)
2. logout then login again from the KDE session
3. after restart firefox restarts freezed (see logout_login_freeze.png)

I also tried deleting the ".mozilla" directory and forcing firefox to create a new one. The behaviur is the same.

There is anything else I can try?

Comment 6

[Monica Chiorean]

I could not reproduce issue on Ubuntu 20.4, using build 100.0.2 and 101.0. Can you please try with a new profile and see if the issue still reproduces with the new profile (https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles).

Comment 7

[mirtobusico]

BTW I'm using Kubuntu that uses KDE; instead Ubuntu uses GNOME.

I tried:

1. delete the profile
2. create a new profile
3. reboot the system
4. login and open three tabs
5. logout and login: Firefox freezes

There is anything else that I can try?

Comment 8

[ccasar]

I experience the same bug since the 100 update. I'm using Manjaro with i3 and Firefox is currently on version 101.0.1.

I tried creating a new profile, opening a few tabs within the new profile followed by restarting the system. Firefox still hangs with the new profile.

Comment 9

[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 10

[timo]

ccasar, same is happening here, but only if Firefox starts on a backgrounded workspace. (e.g. when swallowed by a layout)
If I remove the layout rule and let Firefox start on the currently-active workspace, everything works fine, also when starting it manually.

I've sent a SIGSEGV to one such frozen instance and sent in a crash report, in case that helps: https://crash-stats.mozilla.org/report/index/1dcfe92f-0bfa-4354-866d-331fb0220629.

Comment 11

[Monica Chiorean]

I am not able to reproduce the issue on Kubuntu22.04 using latest Firefox build 106.0.3.
Reporters do you still experience the freeze? Thank you.

Comment 12

[timo]

This just happened again on 109.0b9, Developer Edition. At least the process was responsive and immediately closed when closing the window, but alas, all my tabs were gone.

Comment 13

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

Redirect a needinfo that is pending on an inactive user to the triage owner.
:dao, since the bug has recent activity, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 14

[Monica Chiorean]

Close as incomplete since no update was provided. Please reopen if issue still reproduces. Thank you.