How to set the maximum cache size in Firefox?

In this article, you will see how to configure the size of the cache in Mozilla Firefox. A larger cache implies that a larger amount of offline data can be stored, which will help Firefox to load certain webpages more rapidly!

What is the default cache size in Firefox?

• The default value of Firefox's cache is 50 MB.

• The minimum value is 0.

• The maximum value is 1024 MB.

To change the size of the cache, there are two possible methods.

Note: If your PC is equipped with a SSD, it is not advisable to increase this value!

How to set the maximum cache size?

• Open Firefox.

• Click on the Menu button > Options.

• Click the "Advanced" > "Network" tab.
• Tick the Override automatic cache management checkbox.
• Edit the value for Limit cache to [] MB of space (between 50Mb and a maximum of 1024MB).

• Click on Ok to validate and restart Firefox.

Is there an other method?

• Open Firefox
• Type about:config in the address bar and press Enter.
• Firefox will display a security warning, click on I'll be careful, I promise!
• Search for the browser.cache.disk.capacity preference, which determines the maximum cache size.
• Double-click to edit (Integer value)
• Increment the value to your convenience (default value 50000, which represent 50 MB)