If the steps above don't fix your problem, continue by following these instructions.Ī corrupt profile can cause various problems with Firefox. If you see any running instances please reboot your computer (or use kill/killall command).įirefox -safe-mode Test Firefox with a new profile

Should not print any output as it reports PID of running Firefox instances. Safe mode can be used to start Firefox in basic safe configuration. Sudo dnf install firefox Run in safe mode If there's something printed please re-install Firefox by rpm/dnf on terminal as: If Firefox installation is correct you don't get any output. Then restart your computer and start Firefox again. Standard troubleshooting steps Restart FirefoxĬlose Firefox completely: From the menu at the top of the Firefox windowbar, select File and then select the Quit menu item.

1.10 Collect information for a bug report.1.2 Verify Firefox installation integrity.