Arch Linux

temkyn

Member

Registered: 2021-12-16

Posts: 10

[SOLVED] Firefox suddenly crashes on startup

I'm having the weirdest issue. I closed FF as usual, powered off the PC and when next I booted and tried opening FF it displayed a crash dialogue window. And I haven't been able to launch it since.

Same behavior with:

firefox --safe-mode
firefox --headless
firefox --ProfileManager #creating new profile

Removing cache has not effect

rm -rf ~/.cache/mozilla/firefox

I updated the system and FF to the newest version --- still the same crash. I removed ~/.mozilla altogether --- no joy.

In the terminal FF gives:

ExceptionHandler::GenerateDump attempting to generate:/home/username/.config/mozilla/firefox/fljaw10m.default-release/minidumps/120c67f2-76bc-887b-22c9-554d47ff1a01.dmp
ExceptionHandler::GenerateDump cloned child 40423
ExceptionHandler::WaitForContinueSignal waiting for continue signal...
ExceptionHandler::SendContinueSignalToChild sent continue signal to child
ExceptionHandler::GenerateDump minidump generation succeeded

dmp file is not created though and the minidumps folder is empty.

journalctl -b | grep -i firefox

is empty.

pacman -Qkk firefox
firefox: 98 total files, 0 altered files

Some system info:

AMD GPU

firefox 147.0.3-1
xorg-server 21.1.21-1
mesa 1:25.3.5-1
i3-wm 4.25.1-1
picom 13-1

Any ideas?

Last edited by temkyn (2026-02-10 09:26:35)

temkyn

Member

Registered: 2021-12-16

Posts: 10

Re: [SOLVED] Firefox suddenly crashes on startup

pacman -Qkk nss
warning: nss: /usr/lib/libfreeblpriv3.so (SHA256 checksum mismatch)

For some reason nss got corrupted. Reinstalling it solved the issue.