"Your Firefox is critically out of date" banner
When running an up-to-date version of Tor, I'm sometimes prompted with a banner which says:
"Your Firefox is critically out of date. An update is required to stay secure. (Button: Update Now)"
This is a piece of Firefox code that should be disabled, so users will use the Tor update flow instead of being prompted to install Firefox.
Trac:
Username: hellomebois