Firefox is simply unresponsive when I try to save a page as a bookmark, I have tried clicking the star in the URL bar, using ctrl-D, right clicking on the page, and saving from the bookmarks tab. None of these options do anything at all.

I have tried turning off different add ons but have not had any success. The only time I can get it to save a bookmark is if I bookmark my homepage, then it will save that, but nothing else.