It works for the vast majority of people I’ve asked to test it. But there’s still this case that a friend has (Tabinol, the one who posted the video in question, I don’t know if it can be linked). He sent me these screenshots :
EDIT :
Another person reported the same problem to me.
Then I managed to reproduce the error with two Firefox (based) Extended Support Release :
- Firefox ESR (115.6.0esr)
- Mercury (115.4.0esr)
Tabinol confirms that he got the error using Firefox ESR 115.6.0esr (default in Debian it seems). After installing the version directly from Mozilla (121.0.1), it works.
The problem comes from Firefox ESR, everything points to that.