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- Close all open Firefox windows and tabs. Open a new Firefox window.
- Click the Menu button in the top right
- Select the "Settings" button (Marked by a gear icon) - On Mac the button will Note: Older versions of Firefox on macOS or Windows may say "Preferences" like below" or "Options".
- On the left select the Privacy & Security tab
- Locate and click "Clear History".
- A dialogue box will appear, select the items to delete. We recommend the options selected in the image below. At a minimum, make sure that "Cache" is selected. Before proceeding, verify that the time range to clear is set to "Everything". Next, ensure the options below are selected.
- Now click the "OK" button.
You have now cleared the cache of your Firefox browser! We recommend closing and restarting the program.
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