SuperWideZoom
Make 21:9 Netflix, YouTube, Amazon Prime & HTML5 video fill a 21:9 display, removing the double letterbox effect.
SuperWideZoom - Enhance Your 21:9 Video Experience
SuperWideZoom is a Firefox add-on that allows you to make 21:9 Netflix, YouTube, Amazon Prime & HTML5 videos fill a 21:9 display. It eliminates the double letterbox effect, providing an immersive and enhanced video viewing experience.
Add-on stats
Weekly download count: 3
Firefox on Android: Yes
Risk impact: Moderate risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- *://*/*
Size: 39.40K
Ranking
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
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User reviews
Does what it's supposed to do. There are better addons if you have a ULTRAWIDE but if you have a SUPERWIDE like the Samsung G9, this is litterally the only addon I have found that works. If you have a Superwide monitor it works great and it's probably your only option. If you have a ultrawide, still works but there are better options. I give it 5 stars because it works with superwide monitors where no other addons I have found do so.
by Troy, 2022-01-20
Simple video - select button to de-/activate - stretching. No website profiling. No shurtcuts. No automatic edge/border detection. Video with interchanging aspect ratio content (e.g. cinema trailer) you have to close the video and switch on/off mode. Many sites with video content not support (e.g. Steam Store).
by Firefox user 14008913, 2018-05-07
Yes it cuts the video down to 21:9, but what did you expect?
by Carpenter, 2017-09-17
Add-on safety
Risk impact
SuperWideZoom requires a few sensitive permissions. Exercise caution before installing.
Risk likelihood
SuperWideZoom is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
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