移除被微軟偷裝到Firefox的.NET

Unfortunately, Microsoft in their infinite wisdom has taken steps to make the removal of this extension particularly difficult - open the Add-ons window in Firefox, and you'll notice the Uninstall button next to their extension is grayed out! Their reasoning, according to Microsoft blogger Brad Abrams, is that the extension needed "support at the machine level in order to enable the feature for all users on the machine," which, of course, is precisely the reason this add-on is bad news for all Firefox users.

Here's the bafflingly-convoluted procedure required to remove this garbage from Firefox:

1. Open Registry Editor (type regedit in the Start menu Search box in Vista/Windows 7, or in XP's Run window).
2. Expand the branches to the following key:
* On 32-bit systems: HKEY_LOCAL_MACHINE \ SOFTWARE \ Mozilla \ Firefox \ Extensions
* On x64 systems: HKEY_LOCAL_MACHINE \ SOFTWARE \ Wow6432Node \ Mozilla \ Firefox \ Extensions
3. Delete the value named {20a82645-c095-46ed-80e3-08825760534b} from the right pane.
4. Close the Registry Editor when you're done.
5. Open a new Firefox window, and in the address bar, type about:config and press Enter.
6. Type microsoftdotnet in the Filter field to quickly find the general.useragent.extra.microsoftdotnet setting.
7. Right-click general.useragent.extra.microsoftdotnet and select Reset.
8. Restart Firefox.
9. Open Windows Explorer, and navigate to %SYSTEMDRIVE%\Windows\Microsoft.NET\Framework\v3.5\Windows Presentation Foundation.
10. Delete the DotNetAssistantExtension folder entirely.
11. Open the Add-ons window in Firefox to confirm that the Microsoft .NET Framework Assistant extension has been removed.