So I was standardized on Opera for several years, tried Brave, didn't really like it, and then someone on here recommended Vivaldi. I tried it and really like it, it's my main browser now. Problem is, it seems to lose the file-type association for web links and http files and so on. I clicked on a link in an email and it opened the box inviting me to tell it what program to use, and -- Vivaldi wasn't even one of the pre-registered options, only Opera. So I browsed to the location (which is oddly in %APPDATA%), and explicitly told...