A routine security update for a Microsoft Windows component installed on tens of millions of computers has quietly installed an extra add-on for an untold number of users surfing the Web with Mozilla's Firefox Web browser.
Earlier this year, Microsoft shipped a bundle of updates known as a "service pack" for a programming platform called the Microsoft .NET Framework, which Microsoft and plenty of third-party developers use to run a variety of interactive programs on Windows.
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.
'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.
Annoyances.org, which lists various aspects of Windows that are, well, annoying, says "this update adds to Firefox one of the most dangerous vulnerabilities present in all versions of Internet Explorer: the ability for Web sites to easily and quietly install software on your PC." I'm not sure I'd put things in quite such dire terms, but I'm fairly confident that a decent number of Firefox for Windows users are rabidly anti-Internet Explorer, and would take umbrage at the very notion of Redmond monkeying with the browser in any way.
Big deal, you say? I can just uninstall the add-on via Firefox's handy Add-ons interface, right? Not so fast. The trouble is, Microsoft has disabled the "uninstall" button on the extension. What's more, Microsoft tells us that the only way to get rid of this thing is to modify the Windows registry, an exercise that -- if done imprecisely -- can cause Windows systems to fail to boot up.
When I first learned of this, three thoughts immediately flashed through my mind:
1) How the %#@! did I miss this?
2) The right way would have been to just publish the add-on at Mozilla's Add Ons page.
3) This kind of makes you wonder what else MS is installing without your knowledge.
Then I found that I wasn't the only one who had these ideas. Microsoft has heard these criticisms from others who long ago commented on this unfortunate development (see the comments underneath this post).
Anyway, I'm sure it's not the end of the world, but it's probably infuriating to many readers nonetheless. Firstly -- to my readers -- I apologize for overlooking this..."feature" of the .NET Framework security update. Secondly -- to Microsoft -- this is a great example of how not to convince people to trust your security updates.
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