Why does SE use Opera browser? Uninstalling and then reinstalling.

gb8080 6 years ago 0
Trying to find out why, even though Internet Explorer is my default brower, messages come up in Opera browser which I never use for anything else and gave up on several years ago. Any ideas why?  I have changed file associations for everything opera-related (except .oex which is opera extension, will try it next).  SE has some strange code for calling browser after it's installed ...