1. Open FireFox Browser

  2. Click the “3 Line” icon on the top right of the browser

  3. Navigate to Setting

  4. Click Privacy and Settings on the left side of the menu

  5. Scroll down to the Cookies and Site Data header

  6. Select the Clear Data button

  7. Check the boxes on the Clear Data pop-up window, then select the Clear button 

  8. Make sure to close your browser after clearing, then reopen the browser to continue working