This would have been a very good extension, but the zooming only at the center is rarely useful.

Zoom in works only centralised not to a specific direction, therefor it is useless...

Not working in Firefox 81. When it did work before, it was only zoom into the center with no ability to move the view elsewhere in the frame.

Awesome idea, okay execution. Just being able to zoom but not pan around sucks. Then to zoom in atleast on my mac I have to press Control + Shift + "=" and zoom out is Control + "-". For coding tutorials if you could somehow pan and showing how to zoom in and out is a little bit more clear this would be a 5 star.

L'idée est bien, mais il ne se passe rien...
Great idea, but nothing happens...

Glitching on ultrawide monitors when activating the zoom function ie. video aligned to left side

I be the first then :) Working PERFECTLY in Waterfox 56.2.10 in macOS High Sierra. Thanks Jannis!!!!