To use these add-ons, you'll need to download Firefox.
https://docs.google.com/document/d/e/2PACX-1vQLE0CqoZ6OEJ0ziRCUrUnboY3GkkX-cAt6n9_zoq9c-iw8nrC97nnugcYmrF_ldE1JUhxGxcqtMlvx/pub