Could you share the output of $ snap connections firefox
it's working fine here but could it be that somehow the x11 interface isn't connected for you? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1965113 Title: Firefox 98.0.1-2 snap doesn't start at all in Xorg sessions Status in firefox package in Ubuntu: New Bug description: Firefox 98.0.1-2 snap doesn't start at all in Xorg sessions. $ /snap/bin/firefox Error: cannot open display: :0 $ echo $DISPLAY :0 And other X11 apps still work just fine. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1965113/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp