It does all the work pretty well. Must have for 21:9

Work greatly with desktop firefox. Please support android firefox.

This is amazing, even when a video switches back and forth it keeps up! This makes YouTube on an ultra-wide a vastly better experience!

So far, so good. Automatic video detection works and saves the hassle to manually switch modes. Needs better UI, but otherwise 5 stars.
Relevant specs: 34" LG WK650 and RX480

Really great addon, thank you :-)

Super extension, extrêmement personnalisable.

El único que funciona siempre

perfect !!!!!!!

Does its job!

This is the best smart ultrawide extension you can get. Most other either you have to keep toggle on and off depends on the content aspect ratio. This one is automatically detect the content and fit the content to your screen ratio. WOW