userChromeJS scripts from other authors

[rediffusion]

Auto Plain Text Links - what a heck is this?
Context to Search - what a heck is this?
Input Language Assistant - I don’t understand how it works?

Ctrl + Right-Click for deletion Add-on works bad.
Tested on "StyloaiX" - only the styloaix.uc.js file was deleted. The folder styloaix isn't. Same here "Auto Plain Text Links".

Restore removed pages - I don’t understand how it works?

Sincerely!