Clear Cache and Cookies in Firefox

To clear all cookies, site data and cache, please follow steps as below.

1. Open Firefox
2. Click application menu button on the top right
3. Click History
4. Click Clear recent history
5. On the Clear browsing data and cookies pop up window, select desired When

Please see these articles to clear cache and cookies in other browsers:
Clear Cache and Cookies in Google Chrome
Clear Cache and Cookies in Internet Explorer