On Sun, 2025-02-16 at 20:46 -0800, ToddAndMargo via users wrote:
How do I clean up my MATE "Open With"?
Here is what it looks like: https://ibb.co/jPv3SjCv
Have you done something like set options to open mimetype application/octet (basically every miscellaneous binary file) with something?
Mate has a control panel for "preferred applications," but it only configures a few different groups of file types.
I'm not sure about bruteforce resetting control over a lot of different mimetypes. My first thought was to look for config files related to mimetypes.
e.g. locate -i mime | grep /home
There's an xdg-open tool that used to be used as a file handler by various things, I'm not sure if it still is. Nor can I recall how it's configured, but it might give you a research hint.
You may be fighting a losing battle if there's some app that decides it should be able to open just about every file type, and other apps with the same mindset.
I'm still glad that on Linux is reasonably safe to double-click almost any file I've saved to open it / view it / read it, and not have to worry about executing it. Though I still right-click on things I have little clue about what they are, to open them in some benign app.