I tried with the upstream build and it works fine. It was 94.0.1. My current installed Firefox version is also 94.0.1 and the bug is still there.
I will try disabling all extensions, and create a new profile, and see if either helps. -- 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/1948355 Title: Firefox settings font size dropdown flashes, hard to select Status in firefox package in Ubuntu: Incomplete Bug description: Go to settings, then font, and try to change the font size. The dropdown flashes and disappears, and is very difficult to select. Happens both on the main screen and the "advanced.." screen for all size selectors. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1948355/+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