Reviews for UltraWideo
UltraWideo by nonwip
Review by TheInfidel
Rated 5 out of 5
by TheInfidel, 2 years agoIve been using Ultrawidify for long, but it has major performance issues with 4k 60fps ultrawide (on very powerful hardware you will have 1% frame drops with it enabled). This extension is far slicker, lower footprint, does not cause ANY issues with the same footage, and it offers a very convenient way of adapting a quite troubled aspect ratio of superultrawide 5120x1440 32:9 to the needs of the user. It must be said that 5120x1440 32:9 is basically a failed concept of aspect ratio implementation on a monitor that is supposed to play content NOT natively made in that same format. It will NEVER work properly fullscreen without cropping or distortion. This resolution should have received a 32:10 monitor solution. Sadly cheaping out on the panel size made it a sad affair for scaling video content. The solution for me is to set X to 0:9 and Y 1.3 in stretch mode.This will have small horizontal black bars but they are a acceptable trade off , minimal cropping the content,and have a natural viewing experience with no distortion.
Alternatively setting it to NORMAL with X at 1.9 and Y at 1 will not crop anything, while having minimal black bars vertically.
Conclusion. No software solution can provide the perfect 32:9 5120x1440 experience. It is inherently a unbypassable hardware problem to display content not natively provided in that format. A video game that offers the resolution settings does this. A video not recorded in that same format can not, no upscaling or stretching can remedy this to perfection.
What i do not like is the paywall for pro features, at least name a price and the added functionality in your UI.
Alternatively setting it to NORMAL with X at 1.9 and Y at 1 will not crop anything, while having minimal black bars vertically.
Conclusion. No software solution can provide the perfect 32:9 5120x1440 experience. It is inherently a unbypassable hardware problem to display content not natively provided in that format. A video game that offers the resolution settings does this. A video not recorded in that same format can not, no upscaling or stretching can remedy this to perfection.
What i do not like is the paywall for pro features, at least name a price and the added functionality in your UI.
Developer response
posted 2 years agoAppreciate the thorough review, TheInfidel.
Duly noted, regarding the paywall. As you may conclude from that, I am not really pushing people to upgrade to Pro. It's more of a support the development - type of thing.
Aside, I did not want to bloat the extension size by adding a bunch of text into the Popup window. At some point, I might describe it a bit better and have a page dedicated to the features and pricing, before authentication lock.
Duly noted, regarding the paywall. As you may conclude from that, I am not really pushing people to upgrade to Pro. It's more of a support the development - type of thing.
Aside, I did not want to bloat the extension size by adding a bunch of text into the Popup window. At some point, I might describe it a bit better and have a page dedicated to the features and pricing, before authentication lock.
224 reviews
- Rated 5 out of 5by Firefox user 18785404, 6 days agoI've been using it for a long time - it always works great!
I haven't had any problems with this extension, and I hope I won't.👍 - Rated 5 out of 5by Aleksey, 10 days ago
- Rated 5 out of 5by Satagiah, 14 days agoI am freaking moron or had a brainfreeze - everything is OK. Sorry.
Developer response
posted 14 days agoHello,
Last update was: 3 months ago (Jan 4, 2026)
So nothing was changed "recently". It's either something related to Linux or an extension that you have installed that is conflicting with UltraWideo. If you have any extensions that have similar purpose, uninstall them.
Also, have you tried uninstalling entirely and installing again? If you did, and it still does not work, I am happy to check it out over AnyDesk or something that you have on Linux.
I have no clues otherwise why it would stop working for some users. I've been getting straight 1 star reviews with no helpful feedback on GitHub that would help me to debug and resolve the issue.
Aside, working fine for me in Firefox 148 on macOS.
Any help is appreciated!
Best,
Nenad Novakovic.
EDIT:
Thanks for editing your review. Don't harm yourself with such words, over it.
I would appreciate to hear what was the issue that you encountered, as it may be the same reason why two/three users below gave me one star. - Rated 1 out of 5by Amdur88, a month agoПерестало работать, на любом из сайтов... (p.s. версия 3.5.4 работает отлично, версия 3.5.5 не работает
Developer response
posted a month agoThis isn't helpful at all. Mind telling me how 3.5.5 isn't working? There's literally only change for the scaling option that makes scaling of X or Y axis - reflect the change of the other that's modified.
Tested in latest firefox and in nightly and it seems to work fine for me still. - Rated 1 out of 5by Re'soul, a month ago
- Rated 1 out of 5by Noah, a month ago
- Rated 4 out of 5by Ka, 2 months ago
- Rated 4 out of 5by PAPC, 2 months agoWorks better for me than the other one, Ultrawidify. Also, the UI is nicer. Only annoyance so far for me is that I can't support it/purchase Premium with just a one-time purchase. I would if that was an option.
- Rated 2 out of 5by joJoking, 4 months agoJust after a couple days using the video doesn't show correctly. Only half the screen. It cuts off the bottom half
- Rated 3 out of 5by Dnr, 5 months agoWorks well on most pages but recently subtitles stopped working on fullscreen mode on some of them, notably Disney+
- Rated 3 out of 5by Moz-4817, 6 months agoIt works decently well, but important features are locked behind a paid subscription that somehow requires a github account. I'm usually happy to donate if an extension is useful, but to not even be able to use it outside of fullscreen if I don't? And I didn't see a way to try the paid features and verify they actually work before paying, maybe I missed it.
Developer response
posted 5 months agoHello,
Pro features are indeed locked and there is no trial. The approach is, subscribe to keep extension alive and you will get those finished pro features unlocked as a bonus.
So adding them as "try before you buy - does not make sense in this scenario", sorry.
I do not think that any Pro features are really that much important, all the basic functionality is already there and free to use.
Thanks! - Rated 2 out of 5by Firefox user 19518313, 6 months agoIt's a great extension, but since last update subtitles doesn't work on full screen
- Rated 4 out of 5by Pablo, 6 months agoUseful, but subtitles don't show when in use (I use it to watch diney+)
- Rated 2 out of 5by Firefox user 13742779, 6 months ago
- Rated 4 out of 5by Ryan, 7 months agoI’ve noticed an issue when using UltraWideo with Apple TV+ in the Firefox browser. When I stretch the video to fill my screen, the Apple TV+ subtitles no longer display correctly. They get cut off or covered up, making them unreadable. This didn't used to happen, I believe. I suspect the extension is applying the stretch only to the
- Rated 5 out of 5by FearWhat, 7 months ago
- Rated 5 out of 5by shadvbnm, 7 months ago
Developer response
posted 8 months ago1. Not really. It's freemium, so payment is not mandatory.
2. No, where did you get that misinformation from? It collects zero data.- Rated 5 out of 5by Steven, 8 months agoWorks amazing. Please do not add the watermark back as that is a deal breaker for OLED users.
- Rated 2 out of 5by Matthew, 8 months agoHotkeys don't always work in firefox. Whyyyyy is there a watermark? I'm uninstalling and searching for an alternative simply because of the dumb watermark.
Developer response
posted 8 months agoIf they don't work, it's firefox issue. Because extension is using browser's shortcuts API.
Watermark will disappear in 3.5.1, but Mozilla is slow on approval. Should happen this week I guess. Try Chrome? Developer response
posted 8 months agoThank you for your input. I did not expect this tiny watermark to be huge annoyance, but seeing many negative feedback the watermark is removed in version 3.5.1.- Rated 5 out of 5by Firefox user 19172277, 9 months agoThis was originally a 1-star review of a version that had a watermark added in the non-Pro version. After kindly listening to our feedback, the developer changed this, and I can now wholeheartedly recommend the add-on! Much appreciated.
Developer response
posted 8 months agoThank you for your input. I did not expect this tiny watermark to be huge annoyance, but seeing many negative feedback the watermark is removed in version 3.5.1. - Rated 5 out of 5by Edelweiß, 9 months ago5 stars now, thanks!
OG: Works great for cropping widescreen to 4:3. Although in 3.5.0 a watermark was added for free users, shame it used to be open-source too :/Developer response
posted 9 months agoThank you for your input. I did not expect this tiny watermark to be huge annoyance, but seeing many negative feedback the watermark is removed in version 3.5.1.