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Video Scaling Awful in Firefox

I'm having a weird problem where 4k videos that are scaled down to say the normal YouTube player size look terrible, hard to find the right word to explain it, but edges … (read more)

I'm having a weird problem where 4k videos that are scaled down to say the normal YouTube player size look terrible, hard to find the right word to explain it, but edges are jagged. It improves a lot if I full screen the player to presumably closer to 4k dimensions.

Changing playback to 1080p looks better than 4k, again I'm sure it's to do with scaling.

  • I don't have this problem when testing the same videos in Internet Explorer.
  • It's not just my videos, other peoples videos are doing it to.
  • Updated to the latest version of Firefox.
  • Updated my GPU drivers (MSI Nvidia GeForce GTX 1660).
  • Tested in Firefox safe mode and disabled/enabled hardware acceleration.

I'm running out of ideas, so any suggestions would be greatly appreciated.

Asked by paul219 1 month ago

Last reply by Shashank Shekhar 1 month ago

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hi sir...my firefox is having this peculiar problem ..i have tried all the steps given in the prevoius page..but youtube video is not buffering...

initially it buffers for a second...suddenly message appears 'error occured..'...only youtube is having this problem..other website videos buffers fine..i have tried all… (read more)

initially it buffers for a second...suddenly message appears 'error occured..'...only youtube is having this problem..other website videos buffers fine..i have tried all the solutions you have given in the these pages...but its not working..please help me out...

Asked by gopi1 5 years ago

Last reply by guigs 5 years ago

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Flash videos flickering

I lost track of exactly when this started happening, but Flash videos (YouTube, etc) all flicker when I watch them on Firefox. I tried disabling all extensions and all no… (read more)

I lost track of exactly when this started happening, but Flash videos (YouTube, etc) all flicker when I watch them on Firefox.

I tried disabling all extensions and all non-Flash plugins but the Cisco H264 codec, but I still get the flickering.

Oddly, if I restart Firefox in safe mode, there is no flickering. Yet, my impressions is that safe mode does nothing but disable all extensions.

Does anyone have any idea of what may be happening?

Asked by MPS_ 5 years ago

Last reply by FredMcD 5 years ago

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Pages with youtube videos keep reloading

Youtube works weird now: when video is played and I try to open commentaries branches, the page reloads (so the video starts playing from the beginning), and this happens… (read more)

Youtube works weird now: when video is played and I try to open commentaries branches, the page reloads (so the video starts playing from the beginning), and this happens only the first time (I can write and read commentaries after these reloadings) for every video I see. I tried deleting all my plugins, but this wouldn't work. What should I do?

Asked by Flyerr 5 years ago

Last reply by guigs 5 years ago

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firefox stops responding when scroling down on youtube.

when i go to youtube and don't scroll down everthings find but if do there a 60% chance that it will stop responding and crash. and i have uninstalled and refreshed firef… (read more)

when i go to youtube and don't scroll down everthings find but if do there a 60% chance that it will stop responding and crash. and i have uninstalled and refreshed firefox and no changes am getting to the point of leaving firefox if i can't fix it

Asked by darkpersona100 5 years ago

Last reply by guigs 5 years ago

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audio fails to use default device

When watching videos on YouTube or listening to music on Spotify Web Player, SiriusXM web, Pandora, etc. switching the default audio device in Windows does nothing, sound… (read more)

When watching videos on YouTube or listening to music on Spotify Web Player, SiriusXM web, Pandora, etc. switching the default audio device in Windows does nothing, sound continues playing through the originally selected device.

I am using Windows 8.1, Firefox version 37.0.1. I have tried downloading the beta Firefox, problem was not fixed and it make some of my extensions unusable.

Asked by fattzilla 5 years ago

Last reply by guigs 5 years ago

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I have an issue with a certain video on Mozilla

So basically my YouTube video screen is large and shrunk only for this video, see pictures, so as you can see I get an HTML5 error and then if I go to full screen that ha… (read more)

So basically my YouTube video screen is large and shrunk only for this video, see pictures, so as you can see I get an HTML5 error and then if I go to full screen that happens, I currently have YouTube Flash Video Player since I prefer Flash, and the other videos are normal, help please.

Asked by Kenneth 4 years ago

Last reply by guigs 4 years ago

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Why firefoxs stops at You Tube? Am working with Windows 10.

Whenever playing YT after a while Firefoxs starts becoming choppy or suddenly there is no sound any longer. Than the video stops and nothing works unless I restart my lap… (read more)

Whenever playing YT after a while Firefoxs starts becoming choppy or suddenly there is no sound any longer. Than the video stops and nothing works unless I restart my laptop.

Asked by AntoineBERBEN 4 years ago

Last reply by Seburo 4 years ago

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Logging into Youtube with a specific account causes corrupt cookies which stop me from watching videos.

Hello, I have had a problem with watching videos on Youtube (Firefox crashes when loading it) but have fixed it by clearing corrupt cookies. However it seems this only wo… (read more)

Hello, I have had a problem with watching videos on Youtube (Firefox crashes when loading it) but have fixed it by clearing corrupt cookies. However it seems this only works when either logged out or logged into a second account, whenever I log into my main Youtube account it corrupts the cookies, and only this one singular account. Is there a corrupt cookies tagged along with this account? All and any help is appreciated.

Asked by Alaanor 4 years ago

Last reply by FredMcD 4 years ago

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YouTube videos and comments hang

This only started earlier last week, or late the week before. EVERY YouTube video, does not matter which one, who uploaded it, or when it was originally uploaded, EVERY v… (read more)

This only started earlier last week, or late the week before. EVERY YouTube video, does not matter which one, who uploaded it, or when it was originally uploaded, EVERY video causes Firefox to hang for up to 10-15 seconds, ever time. And it hangs a second time if I scroll down far enough to load the comments section. So far, all I've seen being used now is the HTML5 player on YouTube, so it's something with that possibly. Regardless, it is incredibly frustrating.

Is this due to something changing with the last couple updates to FireFox, or a plugin I have being out of date (even though they all say they're fine)? If not, is there anything I can do to fix it?

Asked by tfrTron21 4 years ago

Last reply by powerdump 4 years ago

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Youtube freezes mouse, graphics tablet still work?

I built my PC about two months ago, until now everything worked fine. Two days ago I installed a graphics tablet and still everything worked fine. But today, as I got to … (read more)

I built my PC about two months ago, until now everything worked fine. Two days ago I installed a graphics tablet and still everything worked fine. But today, as I got to youtube, the mouse freezes, and it won't let me move my mouse, until I leave youtube. But if i use my tablet I can control youtube like everytime. So I tried deinstalling all tablet drivers, rebooting, but it still doesn't work. Please help, I don't really want to control youtube by a graphics tablet all the time. Btw I am using Windows 10.

Asked by DarkMemories 4 years ago

Last reply by FredMcD 4 years ago

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Why have some YouTube interface pieces become invisible?

I've encountered a strange glitch with YouTube specifically, only in Firefox. Namely, numerous pieces of the interface - the icons on buttons (like the Like/Dislike butto… (read more)

I've encountered a strange glitch with YouTube specifically, only in Firefox. Namely, numerous pieces of the interface - the icons on buttons (like the Like/Dislike buttons) and things, menu buttons, the logo in the upper left - are simply invisible. It's most noticeable along the top. I've attached a screenshot. You can see the logo is absent, there's no button for the upper left dropdown (even when I'm logged in), and there's even no magnifying glass in the search bar button. These are only missing in Firefox. Strangest of all, these DO appear when I access the site via a proxy. I've tried mucking with my hosts file and flushing my DNS, as well as running Firefox in safe mode and resetting it, to no avail. It's possible I'm overlooking something, but I haven't yet noticed similar problems on any other sites.

Asked by Levicus 4 years ago

Last reply by cor-el 4 years ago

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I want to download Youtube videos WITHOUT closed captions.

I looked into the Mozilla menu/add-ons/extensions, but can't find an srt extension to disable. How can I disable closed captions in my download? I'm using Wondershare Vid… (read more)

I looked into the Mozilla menu/add-ons/extensions, but can't find an srt extension to disable. How can I disable closed captions in my download? I'm using Wondershare Video Converter Ultimate 5.1.3 on MAC 10.8.5, Firefox 42.0

Asked by munkee100 4 years ago

Last reply by FredMcD 4 years ago

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Watching YouTube on Firefox keeps causing a DRIVER_STATE_POWER_FAILURE

Yes, for some reason Windows can't handle the Firefox & YouTube combo. It happens rarely, I'd estimate an average of every other day, but it pisses me off. Sometime… (read more)

Yes, for some reason Windows can't handle the Firefox & YouTube combo. It happens rarely, I'd estimate an average of every other day, but it pisses me off. Sometimes I'm not even watching a video, and instead have a tab open in the background.

My local technical support has given up trying to find the problem, and I have no idea what else to do.

Asked by SuddenNonsense 4 years ago

Last reply by James 4 years ago