Works perfectly with my 4:3

Wonderful addon for those of us with a secondary or primary CRT monitor, since a lot of people forget to encode youtube uploads in 4:3 even if they contain no data outside that resolution.

My only request would be to allow it on a per-tab basis or restrict it to certain aspect ratios, since my primary monitor is ultrawide and I'd have to disable it manually every time I wanted to switch monitors. It looks like that's a work in progress for the pro version, but I'm not sure. Excellent addon nonetheless. It works instantly and flawlessly.

Thank you for this extension! I can watch full screen on my 4:3 TV

Works perfect on YT 21:9, Thank you!

works great

very wonderful add-ons thanks so much

It works. Thank you :)

love this extension but I just wish they'd add a whitelist already, using this on sites like twitter or tiktok where vertical videos are common is just painful.

I love this addon! Especially combined with my 4:3 secondary screen, it fixes so much of the old stuff and gameplay footage. A must have for true video lovers 💜✨