I really hope that my extensions are not broken. It would kill Thunderbird. Nobody is going to come along and replace the library of amazing extensions that hav

I really hope that my extensions are not broken. It would kill Thunderbird. Nobody is going to come along and replace the library of amazing extensions that have been built up over the years. Unlike a web browser, email has not changed much in the last 15 years, so I don't see why development needs to advance at a high speed. I doubt that any UX fashion statements are going to be enough to make up for the huge loss of functionality.