Not yet! there are ways to do it with https://github.com/mozilla/webextension-polyfill but i want to focus on one thing at a time for now!

BTW firefox was my main driver before starting develop for the web, then i realized it has a 5% share so it is better for me to focus on chrome for now.

Will revisit if i get 1000 users on chrome or if many people ask for it.