How do I clear my web browser’s cache and cookies?
Each time you access a file through your web browser, the browser caches (i.e. stores) it. In this way, the files (including any images on the page) do not have to be newly retrieved from the remote web site each time you click the Back or Forward buttons.
If you want to remove all traces of the websites you have browsed, you have to clear your browser’s cache.
If you do not see instructions for your specific version or browser, search your browser’s Help menu for “clear cache”.
If you’re unsure what browser version you’re using, from the Help menu, select About [browser name].
Click the Library button, click History and then click Clear Recent History….
Next, click the arrow next to Details to select exactly what information will get cleared. Your choices are described in the What things are included in my history? on the Firefox website.
Click the drop-down menu next to Time range to clear to choose how much of your history Firefox will clear. Select how much history you want to clear.
Finally, click the Clear Now button. The window will close and the items you’ve selected will be cleared.