To clear your cache, click on the "Tools" menu, then "Clear Recent History". You can choose what exactly you would like to clear. NO, this will NOT delete your saved passwords.

* Press and hold  Shift  and left-click the  Reload  button.
* Press  Ctrl  +  F5  or press  Shift  +  Ctrl  +  R  (Windows,Linux)
* Press  Shift  +  Cmd  +  R  (MAC)

There is usually no need to clear the cache. Firefox will automatically remove items to make room for new items if the cache reaches the limit that you have set. Only in case of problems when pages do not load properly then you may need to clear the cache and in such cases you can still try to override the cache. You can reload the page and bypass the cache with: * Press and hold Shift and left-click the Reload button. * Press Ctrl + F5 or press Shift + Ctrl + R (Windows,Linux) * Press Shift + Cmd + R (MAC) See [[Keyboard shortcuts]] and [[Mouse shortcuts]] --- It never hurts to have a backup of your profile data. See http://kb.mozillazine.org/Profile_backup and [[Backing up your information]] http://kb.mozillazine.org/Password_Manager#Backing_up_and_restoring_passwords http://kb.mozillazine.org/Backing_up_and_restoring_bookmarks_-_Firefox