While I as a developer greatly appreciate creating things with the new WebExtensions APIs over old Firefox XUL thingies, I can see how they severely limit my capabilities. If the browser says "You can't do that", I can't do that.
And based on that, you don't have to look too hard into the Firefox userbase to find out that quite a lot people have an answer for your question: "No"
(Background: Firefox is going WebExtensions only in a near upcoming release. Not everyone is thrilled about that)
While I as a developer greatly appreciate creating things with the new WebExtensions APIs over old Firefox XUL thingies, I can see how they severely limit my capabilities. If the browser says "You can't do that", I can't do that.
And based on that, you don't have to look too hard into the Firefox userbase to find out that quite a lot people have an answer for your question: "No"
(Background: Firefox is going WebExtensions only in a near upcoming release. Not everyone is thrilled about that)