I'm getting a very weird problem with firefox:
sometimes it can't copy text. Not that it fails, which is a common problem on operating systems with clipboards. No, the copy option is greyed out.
That's normal linux/firefox weirdness. Here's the really weird part: Every time I see this happen, I try to screenshot it by hitting printscript. This unfortunately closes the menu, so I can't screenshot it... but doing this also FIXES THE PROBLEM