@JeppieIt is like when my teacher doesn't make the youtube video fullscreen and says: what's wrong using it minimized?It is simply that is fits better your needs.
There are literally 20 pages of comments on this topic. So why isn't Mozilla listening to his community? That should be the first thing an open-source project excels at: listening to his community.It is useless if we just stay here and talk to oursel...
[EDITED] Sadly non officially. But you have the possibility to install apps from websites such as YouTube or Mastodon using this extension that works beutifully: https://github.com/filips123/PWAsForFirefox
[EDITED] Sadly officially not. But you have the possibility to install apps from websites such as YouTube using the unofficial extension, that works perfectly for me! https://github.com/filips123/PWAsForFirefox