Firefox Forum di supporto

To many people, this might sound like a Joke when i say Firefox can't play any video on Yahoo News on any Windows 8 Laptop Touchcreen, but trust me, I have tried everything; re-downloading Java, Flash-player, Adobe...etc, I even called Microsoft Support and my Computer company but they all said this is Firefox drama they should be able to fix the issue. Please help. I have three Computers and all can't play any video on Yahoo News, (Youtube is playing great, no issues). Please help.

At first, the same night I decided to update--things were fine but after using the browser hours later a second time: some flash scripts would simply not respond and freeze the tab the content is on or like in my question, constantly stutter. The problem for flash videos only seem to occur when I scroll onto links or when moving up/down a page. I encountered similar problem with FF7--like that time, I installed/uninstalled the flash player and even resetted firefox but to no avail--the problem persisted. It is also present while in safe mode. P.s. such problem is seemingly not present in other browsers which brought me to ask this question for assistance.

The issue seems to be with DRM. Although DRM videos play on other sites like on Amazon Prime Video. I've done everything I could find on the internet as to fix this issue like I've checked and unchcecked play DRM content in the settings and cleared cookies and cache and everything but nothing seems to be fixing the issue. Also, everytime I load Netflix I get a little yellow dialogue box saying installing components please try again. This happens everytime I load Netflix. Now when I click on any video it asks me to install SilverLight, I've installed it already but still it asks me to install it to play the video.

I'm going to my movie website and recently been getting this message. I would click on the movie and it would look like it would start playing and then get this message. Is it Firefox or the website which is hosting the movies?

Is there a workaround to this?

I'm using a Mac with the current OS.

I do have a PC running Windows 7 also

Thank you

I need help! :) Disclaimer: I'm actually trying to help a friend of mine, and I personally spent over an hour at my friend's apartment trying to fix his Firefox. I'm posting here so I can hopefully get some more tips from all experts here.

Symptom: Firefox completely hangs when playing back Flash videos (eg. Youtube). You can usually still hear the audio in the background, but the video freezes, and indeed the entire UI freezes. You can't even click the red [X] button to close the window at that point.

Workaround: Getting the Windows Task Manager up and killing plugincontainer.exe makes Firefox respond again, showing the "Plugin crashed" box in place of the video, and you can finally interact with the browser again.

I've tried the following:

• Ensuring that he's running the latest Firefox (8.0.1)
• Upgrading Flash to latest version - same problem before and after
• Upgraded the graphics card drivers to the latest version (it's a ATI Radeon HD 3200) - same problem before and after
• Created a new Firefox profile - still the same problem
• Made a clean install of Firefox by wiping the program folder - still the same problem
• Created a new Windows login account - still the same problem
• Tried in IE - it works fine!
• Tried in Chrome - it works fine!

I'm suspecting that this is some sort of graphics driver/flash issue, but what really boggles my mind is that it works fine in Chrome, which (I think?) uses the same non-ActiveX version of the Flash plugin.

Another piece of evidence that I think points to the device driver: running Windows in Safe Mode actually makes the video play fine (although very very low fps).

Any clues, anyone? I feel like I've tried all possible troubleshooting steps!

https://www.ardmediathek.de/tv/Krieg-der-Tr%C3%A4ume/XL-Vorschau-auf-Krieg-der-Tr%C3%A4ume/Das-Erste/Video?bcastId=55941212&documentId=55941264

When I try to see the video on this site, I get a message saying that something went wrong. On the same page, a dialogue window is available to choose quality for external player: automatic, high, very high. I can choose high or very high and then i can see the video.

For the arte.tv/fr website there is no such a choice available and so I cannot see the video, message is: video file cannot be played.

For youtube videos FF is ok. I would be very gratefulif you could help me as I tried a lot but to resolve the poblem , without success!

I've recently tried to switch over from Chrome to Firefox, but one thing that is preventing me from completing the switch is that Google Play Music will not play on Firefox 39.

I'm currently running Windows 10, but I've tested this with 8.1 as well. When trying to load music from a radio station, or playlist, it just times out and says Can't Reach Google Play.

This works fine in Chrome and IE 10, 11. What is even stranger, is I can play music from my library on Google Play Music which is also streamed since I have nothing downloaded.

I've tried every fix I could find across the Internet with no success. This is my last resort before I have to switch back to Chrome.

Please help me keep the freedom and look of Firefox!

Hi,

Im running into this bug since i did a fresh install of Windows to 8.1

Since im on windows 8.1 facebook wont play youtube videos in any timeline, it simply opens a new tab, directs me to youtube and starts playing there.. (realy annoying)

It starts to load but opens the video in a new tab instead of showing the video in the timeline itself.

- Im on firefox 26. - Ive debugged facebook, - Reset settings of firefox - Reinstalled Flash player 12 (even tested 11,7 & 11,9) - Ive tried IE + Chrome - Disabled / Enabled ActiveX in IE - Disabled / Enabled hardware acceleration in flash settings - Installed Realplayer - Installed Shockwave - Went thru various troubleshooters on the forums

I dont know what to do anymore.. any suggestions?

Thanks,

For about one month ago, YouTube HD videos (720p, 1080p) are not playing smooth on Nightly, regularly updated. Is there any solution? My machine is powered by Intel Core i5-4570, no graphic card. Thank you

I'm receiving the error that the firefox 62 version that I have does not "recognize any of the video formats available" on youtube and I have also been having trouble with being unable to open other webm formats. I have as the other solutions asked refreshed firefox to it's factory state but that has still not solved the problem. I have checked the plugins page and it does show that the openh.264 plugin is there. Not sure why this could be happening. Ubuntu Linux 18.04

When making videos full screen (from all sites I've tried so far, but specifically YouTube, Vimeo and some of the news outlets), the video gets choppy, like it's using a much slower framerate.

I've tried this on all resolutions from 4K on down to 240 with the same results.

Flash works fine. The videos play just fine in the Echo browser. The videos play just fine in the small in window player, in Firefox.

I'm using FF 43.0.4. I've tried it in safe mode with the same results.

This is on a Dell XPS15, Windows 10 (1511), 16GB RAM, Intel 4600 and NVIDIA GeForce GT 750M video adapters. Hardware acceleration is disabled.

Again, Flash goes full screen just fine. HTML5 does not. What do I need to do to be able to enjoy full screen videos in HTML5?

Thank you.

Hello, i have a problem with Firefox, i watch many stream / video while gaming, the video start shaking back and isn't smooth at all . It usually start happen when i launch a game and the cpu have a big load. I haven't this issue with chrome or edge. It happen on twitch and YouTube. I love Firefox but i can't use it for that issue, very frustrating for me.

I recorded the issue: https://vimeo.com/268910891

Vevo or any other official music videos are not playing in Firefox. After loading for 10 seconds, I am getting "An Error occurred" error. I don't have this problem with other videos. This problem occurred yesterday, although I didn't do any system changes or software updates during the day. In Internet Explorer 11 which using HTML5 Player by default, those videos are starting to play but only after 10 seconds load and not immediately like other videos. When forcing HTML5 Player in Firefox those videos are starting to play after 10 seconds load like in IE but HTML5 Player is very instable in Firefox. Software wise everything is up to date and I already reinstalled both Firefox and IE but the problem is still there. Even System Restore didn't help. Net research also didn't bring any solutions.

A couple of days ago I started seeing my trash full and when I open it to find the contents I find a lot of the following- Recovered Files - Documents Being Saved By Firefox. the documents are all empty but this keep's happening every time I close Firefox. Annoying. thanks for any help.

Hi there, this problem started, about 5 days ago, some videos won't play and it shows it's because html5, but they played previously. I don't won't to move to chrome, i don't know what to do. Any idea is welcomed. Thank you very much.

Hi,

When I try to play .mp4 files in my Firefox 65.0.1 I am getting error "video cannot be played because the file is corrupt". Whereas its working fine in Google Chrome. I tried all possible ways to get it sort. Help will be appreciated.

Thank you

While on facebook, if I watch one or 4(Random number) videos using facebooks own player, not youtube, or scroll down my frontpage wich usually have a large number of videos, firefox connection to the net seem to be lost. When this happends, whatever webpage I try to access in Firefox just gets a "Loading" status in the tabs bar.

Only fix so far is to close and relaunch Firefox.

When doing that, I also find that XMark Sync has lost connection and can't sync up.

While this happends, I have tried IE, Chrome and several chat softwares, like Skype, and these function as supposed to. So the issue is somewhere in Firefox.

The reason I point towards Facebook videos(html5?) doing something to Firefox, is that so far this has only happened while on Facebook, and while watching, stopping, switching to HD, skipping forward/back or scrolling past videos on the frontpage(These autostart when they are "front").

This happends at random, but alot, so much I have pretty much stopped scrolling the front page or looked at videos posted on facebook.

I am stumped.

We host a ton of h.264 videos in the mp4 container displayed through JW Player. We had zero problems with Firefox 34 and earlier playing these videos, the video is H.264 and the audio is AAC, the whole thing is around 500 kbit/s.

They play fine on Firefox 34, Chrome and IE but after updating to Firefox 35.0 we get an error: "Error loading media: File could not be played".

We have found a fix to get them to work in the about:config, switching "media.fragmented-mp4.enabled" to false OR switching "media.fragmented-mp4.exposed" to false will allow our videos to play. Single file mp4's will also begin to download where before we would get a "Video can't be played because the file is corrupt."

Alternatively for Mac users if they just set media.apple.mp4.enabled to False it also works fine.

Non h.264 mp4 videos will play fine.

Here is a playlist that won't play: http://media.vineyardinstitute.org/other/vi_announcement/firefox-test.html Here is the single video file: http://media.vineyardinstitute.org/other/vi_announcement/05_kingdom_theology.mp4

Is there anything I can change on either the playlist or the video files to get this to work? Why would the h.264 files that worked in Firefox 34 NOT work in 35? I will not be able to re-encode all of the videos, it would take me months. Is this a bug with Firefox?

Also I have tried this in safe mode, tried with every plugin deactivated, I have uninstalled Flash and the videos would not play as well as reinstalling a new version of Flash and a fresh copy of Firefox 35.0

Any help would be much appreciated, we are currently directing all of our users away from Firefox till we get this resolved.

Thanks,

Kyle