Solved Videos are not working in Firefox

[mikeholdsworth]

The V.37 version was O.K. for all videos, but after V.38 was installed the video was not working, so I have re-installed V.37. Now it's not working so well.
So I have been using Firefox V.38 again as I said, until today and I have installed V.39.
Both versions won't run the video's for 'YouTube' or other similar app's.
The 'YouTube' app will be working and it will do anything until the actual video is connecting and then only the black screen is viewed (small version), and that's it. The video it's self is without picture or sound, it's the black screen only.
If I do another video it's the same, as is another, and another, and so on.
The 'Chrome' browser is O.K., the video's are working fine.
Can you help me.

 

[Not Myself]

To get started, see if there is anything in this document that is helpful:

Flash - MozillaZine Knowledge Base

 

[GokAy]

Did you try with HTML5 yet?

 

[mikeholdsworth]

Your HTML5 message

Is it is working, and the Adobe Flash drive is the latest, and Java is working, etc.
I don't now what it is.

 

[ThrashZone]

Hi and welcome to SevenForums,
Can you watch any of these youtube videos,
http://www.sevenforums.com/chillout-room/243377-youtube-dump-2-a-125.html

 

[Not Myself]

Is it is working, and the Adobe Flash drive is the latest, and Java is working, etc.
I don't now what it is.

"Is it is working..." What does that mean?

Java has nothing whatsoever to do with this, but javascript, a totally different item, may.

You may have the latest Flash drive installed, but did you use the Adobe Flash removal program first, before updating Flash itself?

https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html

 

[RolandJS]

I suspect the message was: HTML5, it, is working
I have the same problem within my Firefox, no longer will Youtube play arrow appear. My IE and Chrome will play youtube. I'll be watching this thread for the solution -- for I will apply the solution right along with the OP.

 

[Not Myself]

A quick test: Start Firefox in Safe Mode, to ascertain if, perhaps, there is an extension that is interfering with Flash.

Safe Mode - MozillaZine Knowledge Base

 

[Layback Bear]

Check and see if Hardware Accelerator is activated.
I recommend not using it and see what happens.

 

[mikeholdsworth]

I have already checked, the hardware accelerator is not working.
And I've done the Firefox in Save Mode, there isn't.
Thank you both, I'm still waiting and so is RolandJS, I assume.

 

[GokAy]

Tried Safe Mode with Networking and another user account yet?

A clean startup may help.

 

[mikeholdsworth]

Yes I have, I'm afraid

 

[Callender]

Usual solution is:

Backup Firefox Profile. Fully remove Firefox. Run dedicated flash player removal tool and also manually delete all leftovers. Reboot.
Run Ccleaner.

Download Firefox and install. Download latest version of flash player and install.

If videos are now working - restore bookmarks only from FF profile backup. Test video. If it works:

Restore bookmarks and extensions from FF profile backup. Test video.

 

[Not Myself]

More accurately, the usual thing to do at this juncture is to leave Firefox itself alone, and try running it with a new profile, one without anything copied into it from your existing profile. That is because, although it does happen, it is quite rare for the program itself to be faulty, and is much more common for a profile to become corrupt.

Copying things from a corrupt profile into a clean profile will simply cause the new profile to become corrupt. There are methods of doing the copying that can obviate this is it is found that the new profile has solved the existing problem(s), but that comes later, obiously.

Creating a new Firefox profile on Windows - MozillaZine Knowledge Base

 

[Callender]

@ Not Myself

If the profile is corrupt then you're correct. It's a good first step. Copying bookmarks will not corrupt a new profile. Copying extension may corrupt a profile if the problem lies with an extension.

 

[mikeholdsworth]

Thank you very much.

Thank you very much, your 374508 is working again.
Thank you.