#1059171 firefox-esr: Firefox freezes after upgrade from 115.5 to 115.6.0esr-1~deb12u1

Package:
firefox-esr
Source:
firefox-esr
Description:
Mozilla Firefox web browser - Extended Support Release (ESR)
Submitter:
pierre
Date:
2023-12-22 17:48:02 UTC
Severity:
normal
#1059171#5
Date:
2023-12-20 21:47:19 UTC
From:
To:
Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?

apt update && apd upgrade

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

Launch firefox-esr

   * What was the outcome of this action?

Firefox starts, but stay freezed with 100% core usage. Impossible to change
tabs, nor close tabs, nor close firefox.
Only solution is to kill it.

   * What outcome did you expect instead?

Work as expected.

I tried :

MOZILLA_DISABLE_PLUGINS=1 firefox-esr
and it stills freeze

firefox-esr -safe-mode
and it stills freeze

I am able to start it using a new profile.
#1059171#10
Date:
2023-12-20 22:00:29 UTC
From:
To:
I submitted a bug on bugzilla.mozilla.org

https://bugzilla.mozilla.org/show_bug.cgi?id=1871155
#1059171#15
Date:
2023-12-20 22:10:15 UTC
From:
To:
Which process specifically is using the CPU?

Does it happen if you use 115.6.0esr from upstream[1]?

1. https://archive.mozilla.org/pub/firefox/releases/115.6.0esr/linux-x86_64/en-US/firefox-115.6.0esr.tar.bz2
#1059171#20
Date:
2023-12-22 17:44:36 UTC
From:
To:
Le 20/12/2023 à 23:10, Mike Hommey a écrit :
The process is firefox-esr

Yes.

I also tried to downgrade to the previous version, but the problem is
still there.
It seems that the profile has been somehow damaged during the update
process.

I managed to use a backup to get the important files I needed and use
them into a newly created profile.