This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Can't get Silverlight 5.1to work. Is in Ad-ons & always activate. 6??

  • 1 reply
  • 3 have this problem
  • 2 views
  • Last reply by guigs

visualculture
visualculture
more options

I recently ran MacKeeper and Silverlight stopped working. I have installed the new version of Silverlight 6, but it doesn't show up in Ad-Ons. My Ad-Ons shows Silverlight 5.1 and is checked to always activate. However when I try to load a movie, I get a message that Silverlight is blocked.

I recently ran MacKeeper and Silverlight stopped working. I have installed the new version of Silverlight 6, but it doesn't show up in Ad-Ons. My Ad-Ons shows Silverlight 5.1 and is checked to always activate. However when I try to load a movie, I get a message that Silverlight is blocked.

All Replies (1)

guigs
guigs
more options

Hi visualculture, Certain versions of Silverlight have been blocked because of vulnerability issues. There is still an option on the page it is being blocked to "Activate Silverlight"