Thread:Hellousername/@comment-4980039-20121209040116/@comment-4980039-20121209212728

"From the Tools menu, select Clear Recent History... . Alternatively, in Firefox 4 and above, you can also click the orange Firefox button, and then select Clear Recent History from the History menu.

From the Time range to clear: drop-down menu, select the desired range; to clear your entire cache, select Everything.

Click the down arrow next to "Details" to choose what history elements to clear (e.g., check Cookies to clear cookies). Click Clear Now."

if that doesnt work

"From the Tools menu, select Clear Recent History..., and then select the items you want to delete (e.g., Browsing & Download History, Cache, Cookies).

Click Clear Recent History... . "