In "set your default programs" under Win7, file associations of Firefox are altered.

"Set your default programs" in the control panel of Windows 7, Firefox appears in the list of "Programs" on the left. But its icon is that of Windows Media Player.

After I click on the name of the program (Firefox) to see the details on the right, I noticed that Firefox icon becomes that of Windows Media Player, also. And "Mozilla Corporation" becomes "Microsoft Corporation".

If I click on "Set this program as default", files of these types are opened by Windows Media Player, no Firefox:
htm, html, shtml, xht, xhtml.

So I must manually associate these file types Firefox to "associate a type of file or Protocol with a specific program.

To resolve this problem, should what registry entries I change?

You can try to uninstall and reinstall Firefox, perhaps as an administrator.

Do a clean reinstall and delete the program folder before Firefox to (re) install a new copy of the current version of Firefox.

Download a new copy of Firefox and save the file to the desktop.

Uninstall your current version of Firefox, if possible, the settings in the software security and cleaning of the Windows registry.

  • Do NOT remove the data personal when you uninstall your current version of Firefox, because all profile files will be deleted and you lose personal data such as bookmarks and passwords from other versions of Firefox profiles.

Delete the program folder Firefox before installing newly downloaded copy of the Firefox installer.

  • (32-bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (Windows 64 bit) "C:\Program Files (x 86) \Mozilla.

Your bookmarks and other personal data are stored in the Firefox profile folder and will not be affected by a uninstall and (re) install, but make sure that 'delete personal data' is NOT selected when you uninstall Firefox.

Tags: Firefox

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