Clear cache
Clear Cache from recent history
At the top of the Firefox window, click on the Firefox button and then select Options
Select the Advanced panel.
Click on the Network tab.
In the Cached Web Content section, click Clear Now.
Click OK to close the Options window
You can set Firefox to automatically clear the cache when Firefox closes:
At the top of the Firefox window, click on the Firefox button and then select Options
Select the Privacy panel.
Click on the “ Clear your recent history”
4. Clear
Recent History window will pop up. Click the Arrow Button beside
Details to pull up the list of temporary data to be removed from the
browser.
Select the Cache or other temporary data from the list and click the Clear Now Button.
Click OK to close the Settings for Clearing History window.
Click OK to close the Options window