https://www.ghacks.net/2017/04/27/if-firefox-57-would-be-released-today-2274-add-ons-would-be-compatible/
origin - http://www.pipiscrew.com/2017/04/if-firefox-57-would-be-released-today-2273-add-ons-would-be-compatible/ if-firefox-57-would-be-released-today-2273-add-ons-would-be-compatible