Have just updated to FF 77.0.1 and I now just have screensful of some sort of unicody looking gibberish - I'm not finding that anyone has posted on the same issue on the wider net, just some similar older issues that don't seem applicable - any help appreciated. All sites btw, aside of the firefox congratulations/what's new page. (edit: not all sites actually, there are a v few normal or partially normal ones.)