I used C Cleaner and it messed up Firefox. Erased browsing history etc. Afterwards, Firefox loaded slowly or froze up and didn't work properly. I used reset and it seemed to work. However, I still have a few problems. Pandora radio, and other sites, won't load sometimes. When I open up a new tab and it shows previous websites for quick access, it doesn't show the log in pages like it used to, only log out message pages which are of no use. I am afraid to uninstall Firefox and re-install it for fear I will lose my bookmarks and tabs. I would appreciate any advice on how to fix this, and how to use C Cleaner in the future without messing everything up.