Firefox Support Forum

iam currently using acer nitro 515-52 with ubuntu 18.04 as my base os and whenever i try to access the live videos on you tube the following error occurs "our browser does not currently recognize any of the video formats available. Click here to visit our frequently asked questions about HTML5 video". I have only browsec plugin installed on my extensions. I even tried to reinstal my firefox but the same error occurs. kindly suggest me an article so that i can overcome this issue.

Each time I go to YouTube, with Firefox, it will redirect me from the Home page to a random subscription channel. If I click on Home, it will not remain there, but redirects me every time. Disabled AdBlocker, but with no success. Do not have this problem if I use Edge or IE.

When playing a video in background / different tab, the picture (screen) freezes after a few seconds, while sound still going on. It can be resolved by moving over the video picture with mouse cursor again, but it is nagging... Any idea what causes this? I noticed it in Youtube, but also Facebook videos...

For the last few days I've been having an issue with Youtube videos where the video player will appear way smaller than it's supposed to be. This happens even with all extensions disabled and zoom reset (I attached two screenshots to show the difference, dark mode one is firefox, light mode is chrome). I believe this may be a problem with Firefox in general, since it seems like a similar issue applies to other websites. For example, the Twitter sidebar has gotten big enough to need a scrollbar of its own (normally it doesnt need this).

When I go to youtube,I get someones blog in the centre of the screen and I can`t remove it.I did get a message saying "We`ll soon stop supporting this browser soon,for the best experience please update your..........what?Is this something to do with the problem?

Having an issue so far that is only happening in firefox. When viewing a youtube video a white bar blocks about 40% of the video. included is a image of the error and my installed plugins.

For whatever reason, with the latest release, it seems like videos on YouTube produce a white rectangle when hovering over them with my mouse. See image for example.

I have tested without add-ons and the same issue persisted.

I have tested with another browser and it was working fine.

Thanks Have a great day

Today firefox prompted me to upgrade to the latest version, i upgraded to 75.0, then a problem began with youtube. whenever i hover the mouse over the video window the progress bar comes up with white background instead of being transparent as usual, and that huge white bar hides half the video window. i attached a picture, in the top the video is normal when the progress bar is hidden, but when i hover the mouse to bring the progress bar this white monster bar comes up and hides half the screen. the exact same thing happens when the video is full screen too.

i tried removing all plug-ins and extensions, it still happened.

i cleared cache, history, cookies, it still happened.

i logged off completely, it still happened when i played a video without being logged in.

i started firefix in safe mode, still happened in safe mode.

chrome, opera, and edge work alright on youtube. only firefox following today's update. Any help? Thanks

Reproduction steps:

Scenario #1:

1. Go to https://www.youtube.com/watch?v=5EnZZGGxU-g

2. Press the play button in video iframe

3. See your tab crashing

Scenario #2:

1. Go to https://www.youtube.com/

2. Wait couple of seconds

3. See your tab crashing

Scenario #3:

1. Go to https://www.youtube.com/

2. Click on any video preview

3. See your tab crashing immediately

Scenario #2 follows Scenario #1. Scenario #3 being repeated even after restart.

Description:

Repeats each time I press play button on this video frame on that specific page. Tab crashes after such actions repeated after restoration of a tab, in a new tab, also in another window. After some single tab crashes, now any tab with YouTube that's being loaded crashes automatically after a while (DOM loaded as well as video previews, but after some time close to 1-2 sec tab crashes). Issue repeats in safe mode.

Environment details:

• Firefox 73.0 mint 1.0
• Linux Mint 19, Kernel 4.15.0-88, Cinnamon DE
• GPU: Nvidia GTX 960 (driver version 418.87.00)
• CPU/GPU/RAM/Swap/HDD are looking normal
• /tmp directory is full!
• One day I switched media.rdd-process.enabled option in about:config to false ( don't ask why ;) ). Even if I make it true as default, tabs are still crashing
• Used that version of firefox for some time - worked perfectly. This issue revealed only today on that specific URL

My conjectures:

Conjecture #1: YouTube has broken something today

Conjecture #2: Some time related stuff (date is 28.02.2019 03:00:00 MSK - so by UTC it's 00:00:00 which is strange)

Conjecture #3: This video has a present from Mao with some malicious stuff inside ( still hope my PC won't blow up this morning :P )

Conjecture #4: Temp directory is full and that causes quite heavy YT tabs to crash (maybe, if firefox uses /tmp, idk)

Hope ur debugging gods will be with you. If you need any more info or help on this subject - do not hesitate to contact me.

- A happy user of multiple Mozilla products

Okay, so before, when I loaded up 100+ Youtube videos, they stayed when switching tabs - no autoplay. Suddenly they decide to autoplay when switching tabs - note, I've not done anything to my settings or plugins. Fair enough, maybe you changed something (which you often do, without informing). So I check the options. It was on "Block audio", which obviously didn't work, so I tried "Block Audio and Video" - which WORKS, but now both the video is paused (which I want) AND the audio is set to mute (which I DON'T want) - so... what does it take to have Youtube wait for a click to start playing a video loaded in a background tab, but KEEP AUDIO ACTIVE, so I don't also have to unmute the damn video?

Hello, Mozilla Firefox is my default browser and my favorite one

However, I have an issue when surfing on Youtube because at least one of the keyboard shortcuts cannot be used with Mozilla Firefox, while it works ok with both Internet Explorer and Microsoft Edge

Precisely, while on the French keyboard striking the "?" (question mark) key allows to reduce the speed of the video, the opposite shortcut "." (dot) does not works when it should increase the speed

Is there any technical conflict preventing for this dot shortcut to work, or was this forgotten in a way during the development phase?

In any case could it be possible to implement this in a next update?

Many thanks

Dear all,

I am having a severe issue using Firefox on Linux. That is when I use the browser to watch YouTube it is almost guaranteed that the entire system will hang, become unresponsive and then require a hard reset.

I'm using Xubuntu 19.04.

The laptop is a ThinkPad T450. It has a standard configuration except that I installed a SSD. I ran a comprehensive self-test using the Lenovo BIOS' testing feature and everything was given the all-clear. I note that the same problem doesn't occur on my preferred WebKit-derived browser which is Vivaldi.

I'm not the only owner of a T450 in my household. Curiously, this other T450 which runs Xubuntu 18.04 (LTS) does not manifest the same issue. This system also uses Firefox as its browser.

I was advised to check the system logfiles. The only mention of anything likely in the logfiles is the xsession-errors file:

(xfce4-panel:1291): xfce4-panel-CRITICAL **: 21:01:45.450: panel-window.c:2245 (panel_window_active_window_geometry_changed): expression 'WNCK_IS_WINDOW (active_window)' failed.

(/usr/lib/firefox/firefox:1631): dconf-WARNING **: 21:01:47.129: Unable to open /var/lib/snapd/desktop/dconf/profile/user: Permission denied [Child 1577, MediaDecoderStateMachine #1] WARNING: Decoder=7f15d3e94c00 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr<mozilla::mozpromise<refptr&lt;mozilla::mediatrackdemuxer::samplesholder&gt;, #1]="" &gt;="" (0x806e0005)="" -="" 1577,="" 3309="" <="" [child="" build="" decode="" decoder="7f15d3e94c00" detached.:="" dom="" error:="" file="" firefox-69.0+build2="" firefox-9jl5vx="" is="" line="" manager="" media="" mediadecoderstatemachine="" mediadecoderstatemachine.cpp,="" mozilla::mediaresult,="" mozilla::mediasourcetrackdemuxer::dogetsamples(int32_t):="" ns_error_dom_media_fatal_err="" p="" refptr<mozilla::mozpromise<refptr&lt;mozilla::mediatrackdemuxer::samplesholder&gt;,="" true&gt;="" warning:=""></mozilla::mozpromise<refptr&lt;mozilla::mediatrackdemuxer::samplesholder&gt;,>

Reference to my post on the Ubuntu forums: https://ubuntuforums.org/showthread.php?t=2426276

I'd greatly value any help to solve this issue. I'm willing to look at other logfiles or send over any additional information that might help diagnose this problem. Anything to help me get back to using my browser of choice!

Kind regards. Thran

While trying to view "Hurricane Barry Mission Day 4 - Vehicle Cam", "https://www.youtube.com/watch?v=Otx7ZJUDStw" on youtube I cannot see the video just the progress circle. The chat portion is viewable and actively updated. I am viewing this on a Mac running high sierra. I also have a linux workstation which has no problems displaying the feed and is on the same network.

Can anyone offer an explanation?

For many versions of Firefox my Youtube video result thumbs won't load any images. However I can play videos when selected/linked to. I've tried everything.

1) Hardware Acceleration disabling 2) Cookie Clearing 3) Re installing 4) New Profile 5) "about:config" spoofing 6) Plugin disabling

Nothing Seems to work... Any assistance would be appreciated!

Worked fine, but now typically shows , e.g., "no media to process in current tab." Or it seems to download but then gives error message "MP2T No data received." It had just worked fine with Firefox 67.0. DownloadHelper v. 7.3.6. Looks fine in the Add-ons/"manage your extensions" tab.

I know this has probably been asked before, but none of the solutions really work for me. Playing Youtube or other video on sites like Vimeo result in choppy playback. I have ruled out hardware problems, because playing local video works fine. This issue also occurs on Chrome, and turning on or off hardware acceleration does nothing.

Thanks for any help in advance.

Suddenly Youtube is not displayed correctly anymore (see image attached). No text, no logos. Just the videos themselves are still playing.

I already tried safe mode, no change. Also tried deleting all cookies. Also tried incognito mode. I'm using Firefox ESR (60.6.3esr) under Debian Testing. Any ideas?

If I hit a link in Facebook and it is a YouTube video, Firefox goes unresponsive and I have to open the task manager and close Firefox. This happens even if it opens in a new window. I can't even open YouTube on its own without having this happen, can you tell me why? I do have three links that I have bookmarked that are YouTube videos and they play fine, but nothing else.

Whenever I open a youtube video, the player will be paused. All I have to do is click it to start, but that's mildly inconvenient enough to bother me. This issue is present when all of my plugins/extensions/addons are disabled as well. It does not occur if I use Chrome.