Firefox 3.6.15 youtube broken...

Last night on my home machine Youtube stopped working. The box where the flash video plays is black. I came to work today and alas, same thing is happening to me and my co-worker. Both my home machine and my work machine are running Windows 7 64 bit. I tried re-installing adobe flash last night on my home machine and it did not remedy the problem. On all machines that have this issue, youtube videos play fine in chrome, IE, safari, and opera. This seems to be directly related to the last Firefox update that I did.

FYI, this problem appears to be fixed. Thanks for addressing the issue :)

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I have windows 8.1 and firefox won't play youtube videos but IE will

I have windows 8.1 and firefox won't play youtube videos but IE will. I have tried reinstalling firefox, flash, java. Resetting firefox don't help, disabled hardware acceleration, protected mode 0 in the mms.cfg file. Nothing will play on youtube in firefox. It says "an error has occured, please try again later". The ads play fine though. Everything plays fine in IE. I have tried different versions of flash also with no luck. I even restored the system to a previous iso image with no luck. Does anyone have a solution?

It maybe because your javascript is disabled .
You can check the javascript.enabled pref on the about:config page.
http://kb.mozillazine.org/about:config
There are also extensions that can block JavaScript or otherwise interfere.
https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
Or,
"Clear the Cache":
Firefox > Preferences > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
Firefox > Preferences > Privacy > Cookies: "Show Cookies"
Start Firefox in [https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Safe Mode] to check if one of the extensions (Firefox/Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
'''''Do NOT click the Reset button on the Safe Mode start window.'''''
https://support.mozilla.org/kb/Safe+Mode
https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
please report us if any problem.

How firefox play video in youtube?

if not installed flash player, how firefox play video in youtube?

Unfortunately not all HTML5 videos work in Firefox, so you may still need the Flash player.
You can find the 32 bit version of the Flash Player installer for a 32 bit Firefox version here (scroll down to Flash Player (32 bit)):
* http://www.adobe.com/special/products/flashplayer/fp_distribution3.html

Firefox can not load YouTube Website

I put youtube.com in address bar and Firefox can not load youtube website. It eventually times out. Any suggestions? I have tried clearing the cache, closing firefox and re-opening, downloaded firefox again, and the same problem persists.

See:
*http://kb.mozillazine.org/Error_loading_websites
You can try to reset (power off/on) the router.
Do a malware check with some malware scanning programs on the Windows computer. 
You need to scan with all programs because each program detects different malware. 
Make sure that you update each program to get the latest version of their databases before doing a scan. 
*http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
*http://www.superantispyware.com/ - SuperAntispyware
*http://www.microsoft.com/security/scanner/en-us/default.aspx - Microsoft Safety Scanner
*http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
*http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
You can also do a check for a rootkit infection with TDSSKiller.
*http://support.kaspersky.com/viruses/solutions?qid=208280684
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

Firefox will only buffer youtube videos alittle and I can't download anything like anti-mal/spyware.

<blockquote>Locking duplicate thread. 
Please continue here: [[/questions/932265]]</blockquote>
Firefox will only buffer youtube videos alittle and I can't download anything like anti-mal/spyware as it only downloads to 5% and crashes.

Try to disable the hardware acceleration in the Flash Player.
See:
* https://support.mozilla.org/kb/Cannot+view+full+screen+Flash+videos
* http://www.youtube.com/swf_test.html (right-click the player: Settings)
Flash "Display settings" window:
* http://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html
Start Firefox in [[Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Mozila Firefox ne predvaja videa (youtube), če je nameščen vtičnik Adobe Flash player 14, brez vtičnika deluje a opozarja, da je treba instalirati vtičik.

Mozila Firefox ne predvaja videa (youtube), če je nameščen vtičnik Adobe Flash player 14 (najnovejša verzija). Brez vtičnika deluje, a opozarja, da je treba instalirati vtičik (deluje samo v slabši kvaliteti, HD ne predvaj). Vse posodobitve glede grafične so opravljene, računalnik je nov z dobrimi komponentami, ki bi morale zadostovati za delovanje Mozile.

Razumem, da se yourube ne predvaja video posnetke v Flash in da vas prosim, da ga namestite ceprav je že nameščen.
Prosimo, poskusite znova Shcockwave bliskavico, se prepričajte, klobuk je vključen stran about: addons pod "vtičnike"

Hallo, my Firefox browser wont load youtube for some reason, the explorer will. I have tries to change the proxy setings as the firefox help center suggested, but to no avail. Also no updates were installed on firefox that I'm aware of. pleas help me.

Hallo,
For some reason firefox has stopped loading the youtube site for me. I can watch videos other people uploaded to facebook for example, but cant get into the site. the explorer will load the site, so I've tried changing the proxy settings in my firefox as recommended in the help center, but to no avail. Also there was no update installed that I'm aware of, getting to youtube through any link will simply give me an error message saying the connection was reset while the page was loading.
pleas help me.

I had trouble with youtube and cleared all history and cache. This cleared up the problem(s).

Youtube broken after update!

I've updated to the latest OS (5.1) on my Apple TV 3.
YouTube, WSJ, MLB all have been broken since then.
I cannot login, search or watch any video on the Youtube app what-so-ever.
Stragely, Vimeo is still working.
I also noticed that when I go to Settings->General->About, activation status is 'failed'.
Has anyone gotten a solution, or solutions, to these problem?

My AppleTV (3.0.1) can successfully login to youtube but did not show my favorites.
As a workaround, I went to youtube, logged in to my account and shared my favorites.
(http://www.youtube.com/account#sharing/activity)
P.S. Might be that YouTube changed it's APIs... Perhaps a new AppleTV release (3.0.2?)
will use the documented YouTube Data API.

Firefox crashes when using youtube, soundcloud on x86_64 and nvidia

Hello everyone
For the past 6 months or so Firefox has been crashing on me and the only error I get is from dmesg saying:
[118237.001846] Chrome_ChildThr[2120]: segfault at 0 ip 00007f3211f66391 sp 00007f31fc8ac500 error 6 in libmozalloc.so[7f3211f65000+2000]
Is this a hardware issue or maybe a flash issue? Because I did a fresh install of Arch about a month ago hoping to fix the issue and it hasn't solved the problem.
I'm not sure if it's caused by using youtube or soundcloud, but I think it's crashed a few times when I'm not using either of them.
Does anyone has any sugestiong for how I can debug or look deeper into what is causing this issue?
The only thing the mozilla wiki said was to look at the mozzilla crash reporter output, but that doesn't exist on 64bit
Arch x86_64
Intel Core 2 Quad Q6600
Nviida 480GTX @ Nvidia 343.22
Thanks
Regards Yaspoon

As it turns out, Skype also crashes if I try to use video - so I'm forced to confront the possibility that the problem is actually with my PC, or the updates windows has just installed.

My firefox cannot connect to youtube and facebook

I have just returned from China where firefox on my macbook pro cannot get connection to the youtube and facebook website. Now I cannot even get on youtube and facebook in Australia. Anybody had the same problem before? Please help me.

Are you trying to connect over WiFi? Or cellular? Does this happen on all networks or just certain ones?
And, just for my edification, what is "Twitch"?

Firefox unable to play youtube videos: "An error occurred, please try again later."

Tried deleting cookies, clearing history, reinstalling flash, firefox safe mode, all add ons turned off, made a different firefox profile, restarted firefox to its default settings. Nothing works, start playing any youtube video and at the 1 second mark the error appears. It doesn't matter if the video is embedded.
Curiously, youtube does work in chrome.
What do I do?

If your computer doesn't have any sound (no speakers hooked up, etc. then
plug in a set of headphones and see if it works. I know it sounds funny, but I've been dealing with this problem for months on a work computer that has no speakers. Plugging in a set of headphones fixed the problem.
Youtube now requires a sound device present to work correctly.

Firefox no longer displays Youtube videos. How do I fix this?

Firefox 8.0 on 64-bit Windows 7 no longer displays Youtube videos. I get a solid black rectangle where the video should be. How do I fix this?

Answers in this forum have shown different things have worked for different people.
For some disabling hardware acceleration for Flash helps. To do that right-click on a Flash video, select Settings, go to the first tab of the settings for the option to enable/disable hardware acceleration for Flash. This is something recommended by YouTube for those having problems - http://www.google.com/support/youtube/bin/answer.py?&answer=1209379
Clearing YouTube cookies and the cache has also helped some. For details of how to do that see https://support.mozilla.com/kb/Deleting+cookies and https://support.mozilla.com/kb/How+to+clear+the+cache
Others had to go a step further after deleting YouTube cookies and block YouTube from saving cookies. In the Tools menu select Options to open the Options window. Go to the Privacy panel and make sure it is set to "Use custom setting for history". Click the Exceptions button, type in http://www.youtube.com and click on Block
You can also try changing to the secure YouTube site, https://www.youtube.com

Firefox won't play Youtube videos or media videos

It is 2 am and for almost a month now Firefox has slowly been degrading to the point of being completely and utterly useless. First, vine videos went. Then the weather.com videos stopped working. Every video based website online has stopped working right up to youtube finally cracking out today.
Videos won't play. I run firefox in safe mode and STILL, videos show up as a black screen. I tried turning off 'hardware acceleration' in flash, still nothing. I tried clearing the cache, history, deleting firefox altogether and reinstalling.
I'm running Windows Vista. Using Chrome, every video based site runs impeccably so it is definitely a Firefox conflict. I should probably just stop using firefox altogether, but I've been running it for years and it's what I'm used to. I'm getting down right sick of this though.
Things I have tried:
-Running in safe mode: Nothing
-Clearing the cache/history: Nothing
-Disabling add-ons one by one: Nothing
-Disabling hardware acceleration on Flash: Nothing
I don't know what else to do anymore.

Update your Flash player. It is currently blocked because you have a vulnerable/blocked version installed.
*[http://get.adobe.com/flashplayer/]

Firefox keeps opening a YouTube tab over and over

I have two separate PCs that run the latest version of Firefox.
The homepage on both is the same...www.centurylink.net
When Firefox has been opened for a couple minutes it adds a tab of a YouTube page of a McDonalds Super Bowl commercial. As time goes by it opens more and more tabs of the same thing.
I have done the following...
Scan and remove malware...None found
Ran CCleaner
Removed Cookies and Extensions
Reinstall Firefox.
This does NOT happen with Internet Explorer.
It has me stumped.
Thanks for any ideas!

Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.

After updating to Firefox 4, Arabic letters are broken when using punctuations.

In Arabic writing, signs (''' َ ّ ً ِ ٍ ْ ُ ٌ''' ) are used as punctuations with letters. After updating to Firefox 4, a space is created after every punctuation. words become broken.

Problem solved.
1- Start Firefox 4 browser.
2- Type in Address Bar : '''about:config'''
3- It will tell you : '''This might void your warranty!'''
4- Press : '''I'll be careful, I promise!'''
5- Type in Filter Bar : '''gfx.font_rendering.harfbuzz.level'''
6- Change Value to '''1'''.
7- '''Done. '''

Firefox 3.6.15 youtube broken...

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