The solution in the thread that you provided says nothing about the plugins that you have listed. Their issue was resolved simply by reinstalling Firefox, likely because one of the files in their installation of Firefox was corrupted or damaged.

The plugins that you have listed are far from a "nefarious plot".

The Wildvine Content Decryption Module provided by Google is a plugin that allows you to access videos that are DRM-protected (Digital Rights Management Protected). This is used on certain services, like Netflix. It's included in Firefox because it's the industry standard.

As for the OpenH264 Video Codec provided by Cisco plugin, this is simply for decoding video content. Quite simply, it's the software that is used to play H.264 videos in Firefox. H.264 is the most commonly used video format on the internet.

To solve the issue that you are having, I'd first recommend reinstalling Firefox like the user in the thread that you have linked. It's likely the solution to the problem.

Hi Wesley! You're correct in that the original poster didn't mention any problem with those two plugins but I apparently DID have a problem. Perhaps it's that my computer is older or something. Don't know.

All I know for sure is that I had uninstalled and reinstalled Firefox several times prior to this and nothing worked.

But the problem vanished after I just disabled those two plugins.

Thanks for offering a different perspective on this!

)

Wesley Branton said

As for the OpenH264 Video Codec provided by Cisco plugin, this is simply for decoding video content. Quite simply, it's the software that is used to play H.264 videos in Firefox. H.264 is the most commonly used video format on the internet.

Not quite as this Plugin is for to enable video calls with devices that require the H.264 codec. https://support.mozilla.org/en-US/kb/open-h264-plugin-firefox

The support for H264 in HTML5 players on Windows you use the codecs from the media feature pack. On Linux it is provided by the FFmpeg.