Clearing the cache from Firefox is often necessary to solve certain web page and browser problems that sometimes occur.

The cache in Firefox contains locally saved copies of recent web pages you’ve visited. This is done so that the next time you visit the page, Firefox can load it from your saved copy which will be much faster than loading it from the Internet.

Clearing the cache in Firefox is completely safe and should not remove any important data from your computer.

Follow the easy to follow steps below to clear the cache from your Firefox 30 browser:

Difficulty: Easy

Time Required: Clearing the cache in Firefox 30 usually takes less than a minute

Here’s How:

  1. Open Mozilla Firefox

  2. Click the Menu button (the one with three horizontal lines) and then choose Options.

    If Options is not listed in the menu, click Customize and drag Options from the list of Additional Tools and Features over to the Menu.

    Note: If you’re using the menu bar, choose Toolsand then Options instead.

    Firefox for Mac: On a Mac, choose Preferencesfrom the Firefox menu and then continue as instructed below.

  3. With the Options window now open, click the Privacy tab.

  4. In the History area, click the clear your recent history link.

    Tip: If you don’t see that link, change the Firefox will: option to Remember history. You can change it back to your custom setting when you’re done.

  5. In the Clear Recent History window that appears, set the Time range to clear: to Everything.

  6. In the list at the bottom of the window, uncheck everything except for Cache.

    Note: If you wish to clear other kinds of stored data, feel free to check the appropriate boxes. They will be cleared with the cache in the next step.

    Tip: Don’t see anything to check? Click the button next to Details.

  7. Click on the Clear Now button.

  8. When the Clear Recent History window disappears, all of the files saved (cached) from your Internet browsing activities in Firefox will have been removed.

    Note: If your Internet cache is large, Firefox may hang while it finishes removing the files. Just be patient – it will eventually finish the job.


  1. Older versions of Firefox have fairly similar processes for clearing the cache but please try to keep the latest version of Firefoxinstalled if possible.