Some extensions don't work well with windowed. They don't crash, but windowed doesn't work.
This is not because the others extension made a mistake, there just isn't a way to make it work because of how extensions work.
The way windowed works is by tricking pages into asking windowed to activate fullscreen, where normally they would ask the browser. I can't apply that trick for code running in other extensions, so they will still ask the browser directly, because they just can't notice my existence.
Some extensions don't work well with windowed. They don't crash, but windowed doesn't work. This is not because the others extension made a mistake, there just isn't a way to make it work because of how extensions work.
Let me know if you find any others
Why can't they all just work together?
The way windowed works is by tricking pages into asking windowed to activate fullscreen, where normally they would ask the browser. I can't apply that trick for code running in other extensions, so they will still ask the browser directly, because they just can't notice my existence.