HUGE PROBLEM FOR ME AFTER RESETTING FIREFOX!!

a) WEIRD FORMAT!! there's this weird list-like format when I went to the firefox add-ons website b) I can't download ANYTHING from the add-ons website because it says there are NO MATCHING ADD-ONS (what the?!) c) it always says "this connection is untrusted on my add-ons manager for [get add-ons] as well as other websites The firefox i have right now is up-to-date i resetted firefox, and this is the result, so please tell be how to fix it.