FileTypesMan allows you to view, add, remove edit file extensions and types on Windows 11/10. You can always manually set or change File Associations & Extensions.

Learn how to create folders by file extensions on Windows 11/10. You can sort files by extensions or formats using this guide.

As extensions cause Firefox to use more memory than normal, if you do not use an extension, then you should always remove it. This guide will explain how to remove a Firefox addon or extension.