After upgrading my older Firefox to the latest Firefox version 29, I faced issues viewing netflix videos on my PC.

First, Netflix asked me to install Silverlight:

Netflix-Silverlight-install

 

After downloading the software and clicking “install now” as per following screen:

SIlverlight-Install2

I got the following error:

SIlverlight-Install3
Clicking on “more information” shows the exact error:

SIlverlight-Install4

So I proceeded to uninstall Silverlight and installing it again:

SIlverlight-Uninstall1

After finishing the install and trying several times to get it working, I fixed it by doing the following:

  • Start firefox in safe mode by pressing SHIFT and clicking on the firefox icon on my desktop. This will start Firefox 29 with no addons and helps finding which addons is causing the issue. If you have Firetube you might want to desactivate it and see if it works.
  • I had to go to Tools > Addons > Plugins and activate “Silverlight Plug-In 5.1.30214.0” because it got somehow desactivated. After restarting Firefox I was able to watch Top Gear on Netflix.

 

Activate-Silverlight-Firefox29

 

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