In Firefox you can clear all your cookies, browsing histories, and caches easily from the Firefox menu. Clearing all cookies and caches regularly, like once a month, can keep your Firefox performing well and also free up some space.
The most annoying thing is Flash cookies. You cannot delete Flash cookies from the Firefox menu. And Flash cookies are stored in your hard drive and take up a lot of space. You can use the free tool called Flash Cookie Cleaner to remove your Flash cookies easily.
How to use it:
1. Download and run Flash Cookie Cleaner
2. Then Flash Cookie Cleaner will show up with all Flash cookies in your drive
3. Press Delete to clean all Flash cookies
