How to clear the Firefox cache

The Firefox cache temporarily stores images, scripts, and other parts of websites you visit in order to speed up your browsing experience. This article describes how to clear the cache.

  • To clear your history (i.e. cookies, browsing history, cache, etc.) all at once, see Delete browsing, search and download history on Firefox.

Table of Contents

  • 1 Clear the cache
  • 2 Automatically clear the cache

Clear the cache

  1. At the top of the Firefox window, click on the Firefox button and then select Options.At the top of the Firefox window, click on the Tools menu and then select Options.On the menu bar, click on the Firefox menu and select Preferences....At the top of the Firefox window, click on the Edit menu and select Preferences.

    Click the menu button spacer and choose Options.Preferences.

  2. Select the Advanced panel.
  3. Click on the Network tab.
  4. In the Cached Web Content section, click Clear Now.
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  5. Click OK to close the Options window.Click Close to close the Preferences window.Close the Preferences window. Close the about:preferences page. Any changes you've made will automatically be saved.

Automatically clear the cache

You can set Firefox to automatically clear the cache when Firefox closes:

  1. At the top of the Firefox window, click on the Firefox button and then select Options.At the top of the Firefox window, click on the Tools menu and then select Options.On the menu bar, click on the Firefox menu and select Preferences....At the top of the Firefox window, click on the Edit menu and select Preferences.

    Click the menu button spacer and choose Options.Preferences.

  2. Select the Privacy panel.
  3. In the History section, set Firefox will: to Use custom settings for history.
  4. Select the check box for Clear history when Firefox closes.
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  5. Beside Clear history when Firefox closes, click the Settings… button. The Settings for Clearing History window will open.
  6. In the Settings for Clearing History window, put a check mark next to Cache.
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    • For more information on the other optionspreferences, see Delete browsing, search and download history on Firefox.
  7. Click OK to close the Settings for Clearing History window.

  8. Click OK to close the Options window.Click Close to close the Preferences window.Close the Preferences window. Close the about:preferences page. Any changes you've made will automatically be saved.

Tip: There are several add-ons available that will allow you to clear the cache using an icon on your toolbar. Go to the Mozilla Add-ons Web Page to do a search.

The Mozilla community is not responsible for maintaining and supporting third-party add-ons. Please contact the add-on developer directly if you need assistance with an add-on.


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