This review is not a complaint about this specific add-on, or it's developer,
It's for Firefox developers!
smart mobile devices exist for 10 years, why such an essential feature isn't integrated yet with Firefox itself !?
I have been a dedicated Firefox user for about 2 decades, and it was my favorite browser, but it is starting to get bloated, slow, and the best part was, having add-on for almost any need, now , instead of having more options, we got less. bummer.