Workaround for Gmail being blocked by “Temporary Error” in Firefox on Fedora
There’s a problem with either Firefox on Linux or specifically Firefox on Fedora where Gmail won’t load and instead shows a Temporary Error page with Numeric Code: 9
Fortunately it’s easy to work around by holding down shift and hitting reload.
I mean, clearing the cache and deleting all my google-related cookies worked too, but that’s a pain to do every time you go back to the site after closing the tab.
Update: It was indeed Fedora-specific, also affected several extensions, and has been fixed in the 82.0.2-3 packages.