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I can no longer stream video from websites in firefox (v40.0.3), though they work with IE. Problem started abruptly last week. Why?

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  • Last reply by FredMcD

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I can no longer stream video from websites in firefox (v40.0.3), though they work with IE. Problem started abruptly last week. I am not aware of any changes, updates, or new software on my computer that may explain this issue. When I launch the video nothing happens and the cursor sort of flickers. How can I solve this? Thanks in advance for your help.

I can no longer stream video from websites in firefox (v40.0.3), though they work with IE. Problem started abruptly last week. I am not aware of any changes, updates, or new software on my computer that may explain this issue. When I launch the video nothing happens and the cursor sort of flickers. How can I solve this? Thanks in advance for your help.

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Your System Details shows;

Installed Plug-ins

Shockwave Flash 18.0 r0 Shockwave Flash 14.0 r0
Having more than one version of a program may cause issues. You must remove the older programs. Then get the current full installer.

Note: Edge on Win10 does not use ActiveX version but its own Flash.

Flash: Grab the uninstaller from here: Uninstall Flash Player | Windows Uninstall Flash Player | Mac

Then reinstall the latest version.

Flash Player Version 18.0.0.232
https://www.adobe.com/products/flashplayer/distribution3.html
Note: Windows users must download the “Internet Explorer” and “Plugin-based browsers” installers.


Issues have been previously linked to the McAfee Site Advisor extension. Try to disable it and see if the problem persists.

http://service.mcafee.com/faqdocument.aspx?id=TS100162 How to uninstall SiteAdvisor

To disable it: Type "about:addons" in the Location bar Find the extension and click on its "Disable" button