I use Firefox on Windows (on multiple machines), and when somebody has an image embedded in an issue or comment in Github, and I click it to see the original sized image it will not load, and simply shows a blank page instead. It's been like this for two years or so.

Same here.

(I think I've ever seen one minor bug: for any repo in the clone dropdown, the "SSH" tab was hidden for me a while ago. Unfortunately I don't remember if this was browser related.)

Using Librewolf 131.0.3-1. Going to the GitHub homepage makes the tab freeze and I have to go to /login or a repository page directly.

No op, but videos/gif (used a lot for demos) don't work , you have to refresh the page