extension ExtPose


CRX id


Description from extension meta

The cross-browser extension that manipulates video aspect ratio to fit your entire screen.

Image from store UltraWideo
Description from store 👋 Introduction Proven to be working on all major video streaming platforms. If it doesn't work for you, it could be a OS related bug. I am using macOS and before I make claims, I thoroughly test it through all major browsers. 🚀 Features The only extension on the market with functionalities that no other extension in this category possess.
 ▸ Blazingly fast — injection script that manipulates the video is written in plain JavaScript, has tiny footprint and is very fast. ▸ Limitless platforms — not limited to any specific video streaming platform. Aims to work everywhere, including embeddable videos. ▸ Minimal interface — thoughtful design that doesn't get in your way, but provides you with all the necessary options to get the experience you deserve. ▸ Appearance — automatically applies the appearance that you are using as your system preference. If your system is in dark mode, the extension will be too. ▸ Cross-browser — available for all major browsers and tested on Chrome & Firefox. It works in all Chromium based browsers as well. ▸ Internationalization — supports handful of languages, but aiming to support all major languages with the help of the community. ▸ Keyboard shortcuts — customizable within the browser to avoid conflicts with other extensions. Support for activity and mode toggling. ▸ Magic touch — Toggle between modes with built-in pinch inwards/outwards on touch screens, trackpads with multi-touch gestures and mouse wheel while holding CTRL key. 🧠 Purpose Gain power over the video in fullscreen mode. Primarily developed for 34" ultra-wide screens, but powerful for other smaller or larger screens too. I am currently using it on my Macbook Pro 14" to get rid of all black bars (horizontally and vertically), previously I used it on ultra-wide monitor. 🙋‍♂️ Usage Relatively easy to use, but powerful at its core. Comes with handful of options within small interface and keyboard shortcuts. ▸ Interface – Popup interface that you usually open by clicking on the extension icon, has built-in shortcut to toggle it for an easy access at your fingertips. ▸ Activity – This option will be enabled by default. To deactivate the features it applies to the video element, toggle the switch. ▸ Mode – Upscale mode will be enabled by default and only one mode can be active at a time. ▸ Scale – It works simultaneously with the active mode and can scale the video up or down. The default value is 1 and it means that no scaling will be applied. 🤞 Claims It is working on all globally popular video streaming platforms. Including all embeddable videos. It will not work on platforms that have custom video element, which is super rare.

Latest reviews

  • (2023-11-13) Pozitigor: Отличное приложение, делает кроп как для 4:3 так и для 5:4, а большего мне и не надо, авторам огромное спасибо за предоставление такого решения для моей проблемы!
  • (2023-09-19) Cøpo Official: Tengo mucho tiempo buscando una aplicación que permita que YouTube se vea en pantalla completa sin bordes negros y esta es la unica que ha cumplido con la tarea muy facil ya viene configurada solo usar. Mis felicitaciones a los desarrolladores
  • (2023-09-18) Riaz Ali: finally my search is over, proper ultrawidescreen on all videos however I choose
  • (2023-09-15) Roman: Careful: After some back and forth testing I figured that this extension alone consistently lowers my speedometer results by about 5-10% and also uses an odd amount of RAM when enabled despite no video is running, I don't know whats going on here but I immediately uninstalled.
  • (2023-09-13) Yousif Adel: This is perfect for fixing kiwi browser's youtube full screen bug.
  • (2023-08-23) Darith Chan: Straight to the purpose, stretch your videos to hide annoying black bars, immediate 5 STARS
  • (2023-08-02) DylansTime: you, my friend, are a legend!!!!
  • (2023-07-30) jon waker: Wow this is just perfect!! At first it zooms, but you can change it by pressing control+shift+z once and it fits the video to your screen without zoom, just full screen. so perfect. I like this plugin, it's the only plugin that doesn't zoom and automatically fits your screen
  • (2023-06-22) Rainbow Dash: I LOVE IT.
  • (2023-05-18) Benedek Makai: I never write reviews for extensions but this one is very deserving of a 5 star review. I recently got this cute 13 inch CRT TV from 2003 for retro gaming and enjoying old shows/anime. I was looking for a way to make YouTube videos (and really videos from any site) fullscreen on the CRT, since usually they just show in the middle with black lines at the top and bottom. This extension changes the video's aspect ratio from 16:9 to 4:3 so they look perfect on the CRT. VERY happy wth this extension. Everyone using a 4:3 CRT needs this!!
  • (2023-05-04) HAMZA RIMI: اضافة أكثر من رائعة
  • (2023-04-20) Luca L: Ottima, permette anche lo stretching (allargamento) orizzontale per correggere l'aspec ratio con qualche vecchio video in 4:3 convertito tale e quale in digitale e risultando pertanto ristretto e allungato verticalmente al centro, con bande nere sui moderni 16:9. Le altre estensioni di questo tipo NON hanno tale funzionalità.
  • (2023-04-01) Sergipe Cycling Club: Não está funcionando no Disney+. It isn't working on Disney+.
  • (2023-03-24) Tom Jeffs: It works ok, but it keeps randomly switching from normal to upscale. Which is damn annoying.
  • (2023-03-01) Nguyen Huy: Lỗi chế độ upscale trên màn 21:9 khi xem vide youtube. Làm ơn hãy sửa lại lỗi này. Mới gặp lỗi này 2 tháng gần đây
  • (2023-02-14) Ivan Milenković: Works on various streaming sites, good and simple extension, can recommend. Edit: as of January 2023 if you experience a problem with the extension stretching the video when it should be cropping, go to chrome://flags/#use-angle and change the ANGLE backend to D3D9, then it should work correctly again.
  • (2023-02-06) A halott Sajt: I hope it will be fixed, right now it doesn't work with disney+
  • (2023-02-06) Максим Щербачов: Супер додаток, велике дякую, тепер на моєму моніторі добре ютуб на весь екран показує!
  • (2023-02-01) 焼きそばパン24代目: it doesnt work on disney plus from todey... I like this addon, so I would be grateful if you would fix it.
  • (2023-01-31) Vordos: После обновления плагин перестал работать на сайте Twitch.tv Исправте дорогой разработчик на остальных сайтах все вери гуд!!!
  • (2023-01-25) Gargamel: chrome only works in the beginning
  • (2023-01-17) Manuel Rochon: This is currently the only extension that really works, in all situations, on any website. All others I've tried have issues. Note: You sometimes need to switch the resizing mode depending on the site and the video that's playing.
  • (2023-01-16) Tomáš Kasprzyk: Doesn't work on disney +, it just stops the video or doesn't do anything at all
  • (2023-01-15) Hannah Benedikt Kunz: Finally no black bars on Disney+ First add on that delivers and runs smoothly. Thanks!
  • (2023-01-13) Omni: Perfekt
  • (2023-01-05) Nohrarit “Pipe” Saengsukhiran: This is very good to fix Dailymotion ratio on non 16:9 screens.
  • (2022-11-16) Ertuğrul Aydoğan: Disney+ için kullanyorum. Ultrawide monitörümde sorunsuz izleyebiliyorum artık. Altyazıda sorun çıkaran uzantılar kullandım, onlara nazaran çok daha temiz çalışıyor.
  • (2022-10-17) 벤투스: Firefox works fine, one hour later, two hours later. But chrome only works in the beginning. It doesn't work over time. It works again when you restart Chrome, but it doesn't work again after a while.
  • (2022-10-08) Blind Mango: This extension is perfect - I have a 16:10 monitor and it perfectly upscales the video so there is no stretching/deforming when you hit the fullscreen button! That means it chops off the sides of the video slightly on my monitor, however I prefer that over the video being stretched. No other wide screen extension does it as seamlessly as this one. Edit: It's important to note that you can hit the extension icon at the top toolbar to change from "stretch" to "upscale" to get this result - I thought the extension broke on me for a while but just didn't realize this
  • (2022-09-20) Ignacio Vche: Perfect for UltraWide Screens
  • (2022-09-20) Ignacio Viche Huerta: The best upsacler and fit aplication for videos
  • (2022-09-14) Tsukuyume's thorough gaming; highlights, longplays: Needs an option to disable upscale... too many times it randomly switched to it when all I wanted was to stretch the video...
  • (2022-09-07) Brandon Rader: youtube added letterboxing to old music videos, so they look terrible on CRTs. NO LONGER!
  • (2022-08-25) Jeff Jamieson: Works beautifully in Peacock. Ultrawide video content actually fills my ultrawide monitor perfectly now, instead of being surrounded by a thick black frame on all sides. I can't believe this extension is even needed - how are these services not coded to perform this way on their own? - but I'm so glad it exists! Great job. Thank you, so much. (That said, I don't know where else it works or doesn't, but I'm very happy so far.)
  • (2022-08-21) Brad Rhodes: - Claims to work everywhere (and in fact says it is the only such add-on to work everywhere!). - Doesn't work on Hulu, in Chrome or Firefox.
  • (2022-03-21) Trí Minh Ngô: tuyệt vời. cám ơn tác giả. hữu dụng khi đang dual minotor: 16.9 & 4.3
  • (2022-02-17) Ata Coskun: Best extension I have ever used. However, It does not work for some video streaming sites anymore. I wish it works for all possible streaming types and browsers.
  • (2022-02-06) MAKSISHKIN: Отличное приложение но не работает на Win 7 x64 после обновления гугл хрома....
  • (2022-01-30) Johnny TI: Лучшее приложение,почему то исчезало из магазина,рад снова скачать
  • (2021-12-29) drek alson: the best i have tried so far for streaming , if you can could just add an advanced option for upscale mode with percentage that we can customize and chose for exeample from 100% to 300% , it will be perfect
  • (2021-12-28) Nik Nab: does not work
  • (2021-12-26) Julio Jua: It was the only one out of about 5 extensions I tried that was intuitive, albeit maybe a bit too simple, but worked on Prime video despite others advertising they work on Prime video. I'm sure some of the other ones were capable, but if so, were unintuitive. Thank god I can finally watch Die Hard and fill the screen!
  • (2021-10-08) mate gamer: dont work on youtube and on any site
  • (2021-09-22) Diogo Luz: It's the first one that works!
  • (2021-09-19) Daiva Deep Verma: This is the best best best best extenion ever its aspect doesn't cut the heads of the people and i love it. The ultrawide things are useless
  • (2021-09-17) Bill Faulk: Upscale almost worked for me which is better than any of the other ultrawide extensions I tried. It seemed to work on hbomax.com but I noticed that it cropped the edges of the video when filling the 21:9 screen. I think it should fill the height rather than the width. It'd leave bars on the left and right but would be as big as it could and still fit on the monitor.
  • (2021-09-11) ahmed alnaim: ممتاز جدا انصحكم فيه ضبطت معي يوتيوب ونيتفليكس
  • (2021-09-05) Gaz Lodge: Sorry - just did not work for me :(
  • (2021-08-25) Richie R.: Netflix doesn't stretch all the way. Using on MacBook Pro + Chrome. Pls fix if you can. I love this extension.
  • (2021-08-19) Nor Azlan: Upscale now not working. More like stretching it

Latest issues

  • (2023-09-29, v:2.5.6) jon waker: It stopped working on Netflix
    It stopped working on Netflix, it just pranks with zoom
  • (2023-01-26, v:2.5.5) Nguyen Huy: Mode UpScale do not working.
    As the title, mode upscale do not working. Since 7 days ago, it's auto stretch mode even I enable upscale mode. Using on 21:9 display, youtube video. Plz help fix soon. Thanks
  • (2023-01-22, v:2.5.2) Greg Seagle: DirecTV Stream
    First off, thanks for creating this! Secondly, I'm having issues with DriecTV Stream Ultra wide working.
  • (2023-01-22, v:2.5.2) Marek Maciejewski: A way to disable stretch mode
    Hi, I've tested other similar extensions and UltraWideo works best for me. Howewer when toggling modes it always goes through "stretch" mode , which I dont like. It would be great to be able to permanently turn off that mode.
  • (2023-01-22, v:2.5.2) Annalisa De Faveri: doesn't work
    Hi! The extension doesn't work neither with the ctrl shift z nor by clicking manually in the extension. How can i do? Thanks Annalisa
  • (2023-01-22, v:2.5.2) Krister F: Wont work in Upscale
    Hi, Amazing extention. But just recently i have had the problem where no matter what it just does not work in upscale. Just shows me 2 stretched images and 1 normal when cycleing throught the modes. Is it a known issue or is it being worked on??
  • (2023-01-22, v:2.5.2) Devil Saint: Problem with the add-on on Google Chrome
    Today the addition on filmix.ac on Google Chrome began to increase the player regardless of settings, while Mozilla Firefox has no such problem.
  • (2021-10-17, v:2.4.2) Tsukuyume's thorough gaming; highlights, longplays: Seems to sometimes randomly switch around options?
    Not sure what's doing it, but sometimes it goes from e.g. stretching to upscale, which is more than annoying as it's hard to notice, and I'm losing parts of the video...
  • (2021-01-28, v:2.4.0) Nick De Villiers: "Upscale" now stretches
    I love this extension but it's become unusable now, the "Upscale" button now just stretches video for me rather than actually upscaling, so I'm forced to just grin and bear it with the baked-in black bars. Hope this can be fixed soon since this is a really essential feature and the extension isn't even worth having without it.
  • (2021-01-13, v:2.3.0) Gonza Job: Stretch mode
    Hi, stretching just does that, stretch. Fits the image as is, into the viewport. Can you please add an option for anamorphic stretching to reduce the massive distortion of the image at the center of large wide monitors? Thanks. I love the extension.
  • (2021-01-09, v:2.2.0) Thomas Förmer-Biedermann: stretchmode
    if I use the toggle key (e.g. strg + shift + 9 ) for stretching the video stretches only at the right side of the screen. on the left side the black box stays.
  • (2020-01-14, v:2.0.2) Jacob: 32:9
    Please add 32:9 aspect ratio support!
  • (2019-05-04, v:2.0.1) Patrik Kleveland: seem to create audio sync problems
    so when i have the extension on pause mode i don't notice any audio sync lag on streams. but when i unpause it after a few minutes i start to see that the audio laggs behind the video.
  • (2019-02-01, v:1.6) Oğuz Kıymacı: Extension dont work
    Extension dont work anymore
  • (2018-12-30, v:1.6) vlupy: it doesnt work anymore
    it doesnt work anymore i dont know why, i tryd reinstalling but that doesnt work either. Help
  • (2018-12-27, v:1.6) Li Weichao: Not working
    Not working anymore
  • (2018-12-26, v:1.6) Di-kin: Расширение не работает
    Расширение перестало работать, сначала работало всегда и везде, потом просто перестало. Разные режимы ничего не меняют
  • (2018-08-01, v:1.2) Yaiba Kurogane: Keyboard shortcut
    Please add keyboard shortcut for faster toggle between 21:9 and 16:9.


45,260 history
4.1797 (217 votes)
Last update / version
2024-01-22 / 3.0.6
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