Uninstalling breaks file type associations or icons

This article describes how to get file type associations and icons back after installing Firefox on Windows, making it the default browser, then uninstalling it.[1]

You should make sure you have a default browser on your system. Open whichever browser you want to be default and look through its options for the button that sets it to default.

If setting another browser as default doesn't completely restore things, you can set file associations individually.

1. Start -> Control Panel -> Folder Options -> File Types
2. Click on the extension you wish to modify
3. Click on Change... to choose the program that file will open with
4. Click on Advanced then Change Icon... to choose the icon that will display for that file type.