I use tiny.cc to make tiny URLs, and Firefox is giving me this message for the website or any of my previous links: "Disallowed Key Characters."
Tiny.cc worked previously. I have updated my firefox to latest version, but it still doesn't work. As I OFTEN have to shrink a link to use in a tweet, this is very distressing, and although I've searched and searched, I cannot find a solution. (Other than to open safari, which is a PITA. and eew.)