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/]
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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
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Hello Mozilla/FIREFOX I just updated to your latest version and now my NETFLIX nor my YOUTUBE plays anymore. I just get a black space without any volume or play symbols - this isn't working for me. I donated to your organization as I am a supporter but you'll need to honor your side of the street. What are you guys doing to fix this and by when will it be resolved?
Hello,
The Refresh feature (called "Reset" in older Firefox versions) can fix many issues by restoring Firefox to its factory default state while saving your bookmarks, history, passwords, cookies, and other essential information.
'''''Note:''' When you use this feature, you will lose any extensions, toolbar customizations, and some preferences.'' See the [[Refresh Firefox - reset add-ons and settings]] article for more information.
To Refresh Firefox:
# Open the Troubleshooting Information page using one of these methods:
#*Click the menu button [[Image:New Fx Menu]], click help [[Image:Help-29]] and select ''Troubleshooting Information''. A new tab containing your troubleshooting information should open.
#*If you're unable to access the Help menu, type '''about:support''' in your address bar to bring up the Troubleshooting Information page.
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Disable ActiveX filtering: http://forums.adobe.com/thread/867968 -
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'''If you are running Adblock Plus...'''
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