Clearing your Firefox Browser 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.

Clear the cache

  1. Click the menu button and choose Options.
  2. Select the Privacy & Security panel.
  3. In the Cached Web Content section, click Clear Now.
  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 and choose Options.
  2. Select the Privacy & Security panel.
  3. In the History section, set Firefox will to Use custom settings for history.
  4. Select the checkbox for Clear history when Firefox closes.
          Beside  Clear history when Firefox closes, click the  Settingsā€¦ button. The Settings for Clearing History window will open.
  5. In the Settings for Clearing History window, put a checkmark next to Cache.
  6. Click OK to close the Settings for Clearing History window.
  7. Close the about: preferences page. Any changes you've made will automatically be saved.

(thank you to https://support.mozilla.org/en-US/kb/how-clear-firefox-cache)

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