Firefox save webpage as maff or mht

Firefox save webpage as maff or mht

With 2 firefox add-ons, we can save a webpage as a single compressed file MozillaCompressedFile (https://addons.mozilla.org/en-US/firefox/addon/212) or MHT (https://addons.mozilla.org/en-US/firefox/addons/policy/0/8051/48485)