You certainly are having a lot of computer problems hehe. Are you saying you cannot save a webpage URL as a bookmark anymore? Any URL right? Are you overloaded with bookmarks (not that it should be a problem, but it's possible )? Why not upgrade to FireFox 2.0? That may fix your problem if you see no light at the end of the tunnel.
anytime i try to go to Bookmarks, bookmark a page, where it says OK, it won't click off, meaning I can click it but it is not saving the bookmark.. weird huh?