Thank you guys for theses good links.If I "quite" understand what's going on with addons on Firedox 57, I would really appreciate your advices on how to get some good addons on new Abrowser. I miss for example a good video downloader and I used Downthemall with unplug.
I have uBock origin, httpseverywhere, privacy badger and Greasemonkey with View Tube script but this is not working for downloading every video.
Thanks in advance.
