Make 21:9 Netflix, YouTube, Amazon Prime & HTML5 video fill a 21:9 display, removing the double letterbox effect.

What is SuperWideZoom?

SuperWideZoom is a Firefox add-on by codefinite. This add-on has 91 daily active users and an average user rating of 3.50. The latest version, 1.0.0, was updated 6 years ago.

Stats date:
Users: 91 ▼ -1
Rating: 3.50 (4)
Version: 1.0.0 (Last updated: 2017-06-12)
Creation date: 2017-06-11
Weekly download count: NaN
Firefox on Android: Yes
Manifest version: 2
  • *://*/*
Size: 35.63K
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
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Other platforms

Not available on Chrome
Not available on Edge
Risk impact

SuperWideZoom requires a number of risky permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install SuperWideZoom if you trust the publisher.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

SuperWideZoom has earned a fairly good reputation and likely can be trusted.

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on, especially ones with higher risk impact and/or higher risk likelihood.

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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).

Yes it cuts the video down to 21:9, but what did you expect?
by Carpenter, 2017-09-17
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