I assume you've tried running from the cmd line. Try downloading Firefox from Mozilla, run '''firefox-bin''' from the folder and see if you have the same issue. https://www.mozilla.org/en-US/firefox/all/#product-desktop-release The good thing is that if you run strace, the output file ('''firefox_debug.txt''') shouldn't be too big and it should be easy to see why the program ends. '''strace -t -o firefox_debug.txt firefox &''' Also, how about some system info? I just came across fastfetch and it is fast. see screenshot

Does it still happen with the [[Install Firefox on Linux#w_install-from-flatpak|flatpak package]]?