Pointy corner firefox

[Razorhunter]

I had issue with Firefox 77 when uncheck titlebar. Anybody know how to fix it?

[mdragoss]

This problem is related to firefox

Open about:config in a new Firefox tab
Accept the ‘here be dragons’ spiel
Type mozilla.widget.use-argb-visuals in the search field
Check that ‘Boolean’ is selected
Click the ‘+‘ button to add the preference setting
Restart Firefox

https://www.omgubuntu.co.uk/2020/04/fix-firefox-rounded-corners-gnome