How to clear the Firefox cache

Clear the cache

  1. Click the menu button Fx89menuButton and select Settings.
  2. Select the Privacy & Security panel.
  3. In the Cookies and Site Data section, click Clear Data….
    Fx91CookiesAndSiteData-ClearCache
  4. Remove the check mark in front of Cookies and Site Data.
  5. With Cached Web Content check marked, click the Clear button.
  6. Close the about:preferences page. Any changes you’ve made will automatically be saved.