How to Remove Microsoft .NET Framework Assistant From Firefox

5 02 2009

it seems that with recent windows updates, most notably the .NET 3.5.1 update, microsoft seems to think that its not only ok to install software which the user has no idea what it does, but make it intentionally hard to delete.

Here is a guide, basically the same from many other blogs out there but hey, the more publicity that these kinds of practices are NOT ok, the better.

1) Open up firefox

2) press the start button, go to run, and type in ‘regedit’

3) browse to the following directory in regedit:

HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox\extensions

3a) Or if your running 64 bit windows, browse to this directory:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mozilla\Firefox\Extensions

4) you should see a key named “{20a82645-c095-46ed-80e3-08825760534b}”. Right click on that key and select ‘delete’

5) restart firefox

6) type “about:config” into your url bar

7) accept the warning

8 ) type in “general.useragent.extra.microsoftdotnet"

9) right click that key and click “reset”

10) do the same thing for microsoft.CLR.clickonce.autolaunch. (although this string did not exist for me, if it does for you, just right click > reset it)

11) restart firefox again

12) finally, using windows explorer, browse to C:\WINDOWS\Microsoft.NET\Framework\v3.5\Windows Presentation Foundation\DotNetAssistantExtension\

13) delete the ‘DotNetAssistantExtension folder’

14) feel good about yourself.

Thats it. Enjoy your firefox.

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