How to clear the cache in Firefox

firefox clear cache
Firefox (like most browsers) keeps a copy of certain things on the websites you visit, like images for example. Doing this allows Firefox to load pages that you visit regularly (or at least once) faster, which can improve performance dramatically.
There are several reasons why you may want to delete the cached files that Firefox stores, including privacy concerns and technical problems.

Privacy issues will relate to the fact that the files are stored locally, which means the files can be accessed and the images viewed by someone other than yourself.

Technical issues can arise with cached files. For example, if you experience difficulties with certain websites, sometimes clearing the cached files can solve it.

Firefox makes it simple to delete any files that are being stored in the cache. This page will show you how to clear the cache in both old and new versions of Firefox.
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After opening Mozilla Firefox (if you don't have it open already).

On the menu bar at the top of your screen, select TOOLS, click on OPTIONS from the pull down menu, see fig 1.1 below:

Mozilla Firefox tools options

Older versions of Firefox

This is the old Firefox Options dialogue box, click on the PRIVACY icon (labeled A in fig 1.2) and then click on the CACHE tab (labeled B in fig 1.2).

screenshot - Clear the cache in Mozilla Firefox (r) - explains how to clear the cache in firefox

You have the option of changing the amount of disk space Firefox uses for its cache, the value is in MB (Megabytes). The default value is 50MB, this is about right for most users, change if required.

Click the CLEAR CACHE NOW button to delete any files that are in the cache.

Then click the OK button (fig 1.2).

Newer versions of Firefox

Below is the Firefox Options dialogue box. In some versions the Privacy icon will appear different, but the rest of the options dialogue box is the same.

First click on the ADVANCED icon (labeled A in fig 1.3) and then click on the NETWORK tab (labeled B in fig 1.3).

screenshot - Clear the cache in Mozilla Firefox (r) version 3

Click the CLEAR NOW button to delete the files currently stored in the cache.

Firefox gives you the choice of changing the amount of you hard drive's storage it takes up with its cached files. Depending on your version you may have to tick a box labelled Override automatic cache management to be able to change the storage amount. The default setting will also vary depending on your version, if you visit a lot of web pages on a regular basis then you may want to increase the amount of space.

Finally, click the OK button (fig 1.3).
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