No video in Firefox when Adblock Plus is installed

KBA10575

Versions: 4.0, 4.1, 4.1.1, 4.2, 4.3, 5.0, 5.0.1, 5.0.3, 5.0.4, 5.0.5, 5.1, 5.2, 5.3

Last Reviewed: 01/05/2010

Issue:

When attempting to view a presentation in Firefox when the Adblock Plus extension is installed, the video window may appear black.

Solution(s):

To resolve this, either disable Adblock Plus or add an exception for the Mediasite server. To add an exception click the Block button located above the video window:

On the next screen, change it to Exception rule, and click Add Filter. Reload the page and the video should then work properly.