Two Microsoft add-ons for Firefox blocked

I fired up Firefox 3.5.3 this morning and was greeted by a strange popup that said that two of the Microsoft add-ons had been blocked:

• Microsoft .NET Framework Assistant 1.1
• Windows Presentation Foundation 3.5.30729.1

This was unusual, so I searched for other reports and was led to a TechRepublic .com blog post by Chad Perrin:

• Microsoft makes Firefox vulnerable; Mozilla responds

For details please see the above link and Mozilla’s list of blocked add-ons.