Appear only as white background videos in Firefox

I read day and following all the leads I have found to fix this problem. When on Youtube or any other video site that uses Flash, when you select a video to watch, it shows only a white background where has to play the video. Right click in the white box, not display a dialog box, so I can not even choose the Flash settings. Because I can't go in the settings, I can't check to see if activate hardware acceleration is checked or not. If I go here, http://helpx.adobe.com/flash-player/kb/flash-player-64-bit-operating.html below:

Flash drive information

If Flash Player is installed on your browser, the following box shows the version of Flash Player and your operating system. If Flash Player is not installed, you receive an error message.

What I see is an empty area.


When I had the problem to fix, this laptop was running 20 Firefox and Flash Player 14. I upgraded to Firefox 28.0 and a clean install of FP 14, no change. I uninstalled and reinstalled Flash according to the stricter guidelines. I even dug up an old version and tried, but no joy. I have the exact same configuration running on other machines, and they play videos, although on one in particular, Flash Player crash more I want. I digress... my specs are the following:


Windows 7 Home Premium 64-bit

Firefox 28.0.1

Flash Player 14.0 (latest version as of 28/07/2014


If Flash is installed, it only works in Internet Explorer. If I uninstall Flash, videos Youtube will play in IE and Firefox, using the HTML5 versions automatically. Once FP is installed, I can not play video in Firefox, and IE uses Flash Player as if nothing is wrong.


Help, please!

I try to not not sellers by name in public forums, but Comodo is one of the frequent offenders.  They try to intercept the communication between Flash and Firefox, that fires our security protections and causes the Flash and Firefox to be unable to communicate.

You can try to stop the Comodo, but I don't think that will do.  It's easy, then you might as well try it first.  Make sure that Comodo is not running and restart Firefox.  If this does not work, try to uninstall Comodo completely, restart, and there's a pretty good chance that Firefox will start magically work again.

You have any other things of privacy / security at stake?

Tags: Flash Player

Similar Questions

Maybe you are looking for

  • Complaints to apple of my visit

    I am wanting to write a complaint about the service, I received in the Apple Store (131 West County Center St. Louis, MO 63131), anyone know who I should address this and relevant email address? Thank you very much for your help. I had the terrible e

  • Frequency of change to txt file.

    Hi all I have a question about save text files. I'm using LabVIEW to automate a test bench and the oven that is used to run cyclic tests with up to 500 cycles at 1 hour each. I read and display of temperatures on my user interface in real rhyme (whic

  • Problem with 'size of available shrink space' when you try to partition disk

    I spent a good amount of time trying to partition my drive hard so that I can start in Windows Vista and XP, but I am still unable to do so. My ultimate goal is to improve the transition from Vista to Windows 7 (with the upgrade disk), while being ab

  • powerdvx is not read disc when inserted in the dvd player

    message reads no disc is not inserted when the disc is actually. I played several bootleg videos, I inadvertently damaged the eye of reading?

  • Only first version of cc Pro 7.2.2 no form of mask effects?

    Hello! I'm new to first cc and I enter the elements of mask effects, but my effects don't give me the possibility to apply controls shape, rectangle, ellipse, pen etc. Should I have an old version? 7.2.2RP