Ask a question »

How To Increase Firefox Cache Size

May 2016

The Firefox cache temporarily stores various pieces of information from the websites you visit in order to increase browser speed and performance. By default, Firefox has a maximum cache size of 50MB. However, there are two methods you may use to increase the browser's maximum cache size.

How To Change Firefox Cache Settings

Open Firefox, and type
into the address bar.

You will be met with a warning message. Click on I'll be careful, I promise! to proceed.

Look for the entry that reads browser.cache.disk.capacity. Double click it to edit.

You may now set the desired byte value of your cache:

If the above option doesn't suit you, you can also go to Menu > Options > Advanced.

In the Offline Storage section, check the option that reads, Override automatic cache management.

From there, you can modify the value for Limit cache to [ ] MB for space:

Click on OK to validate.

For unlimited offline reading, you can download this article for free in PDF format:

See also

In the same category

Firefox: aumente o tamanho do cache
By ninha25 on May 15, 2014
Published by deri58. - Latest update by ChristinaCCM
This document entitled « How To Increase Firefox Cache Size » from CCM ( is made available under the Creative Commons license. You can copy, modify copies of this page, under the conditions stipulated by the license, as this note appears clearly.