How to clear the Firefox cache

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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.

Clear the cache

  1. Click the menu button New Fx Menu 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.
    clear cache incontent
  5. Close the about:preferences page. Any changes you've made will automatically be saved.
  1. Click the menu button New Fx Menu and choose Options.Preferences.
  2. Select the Privacy & Security panel.
  3. In the Cached Web Content section, click Clear Now.
    Fx56CachedWebContent-clear
  4. 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. Click the menu button New Fx Menu and choose Options.Preferences.
  2. Select the PrivacyPrivacy & Security 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.
    clearhistorywhenFXclosesfx42 Fx56History-custom-clear
  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.
    SettingsForClearingHistoryFX42bd
  7. Click OK to close the Settings for Clearing History window.
  8. 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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