There is an interesting article over at the The Washington Post in which a writer claims that Microsoft silently placed a Firefox extension on our systems. The article states that the extension was installed during what was called a service pack to update Microsoft.Net framework. It also states the following information:

The service pack for the .NET Framework, like other updates, was pushed out to users through the Windows Update Web site. A number of readers had never heard of this platform before Windows Update started offering the service pack for it, and many of you wanted to know whether it was okay to go ahead and install this thing. Having earlier checked to see whether the service pack had caused any widespread problems or interfered with third-party programs — and not finding any that warranted waving readers away from this update — I told readers not to worry and to go ahead and install it.

I’m here to report a small side effect from installing this service pack that I was not aware of until just a few days ago: Apparently, the .NET update automatically installs its own Firefox add-on that is difficult — if not dangerous — to remove, once installed.

In the article it also states that over at they claim that this extension adds an unnecessary vulnerability to Windows users. But there is something I don’t understand about this piece. I use both Firefox and .net including SP1 fix the writer mentions, yet I have no such extension on my system.

So my question to all of you Firefox users is this. Do you have this extension installed on your computer? Please let us know of you have it or not.

Comments welcome.

The Washington Post story is here.