Clearing cache in Firefox

Click on History by going to the upper right-hand corner.  Click the Icon beside the down arrow.  If you don't have the down arrow, it's the one that looks like a stack of books.

                                                                                           

Click on History.

Click on Clear Recent History.

You can uncheck "Active Logins" to save your passwords".

Then Clear Now for everything.



Note: the above will clear everything from your cache and cannot be undone.