Bugs :
K-Meleon Web Browser Forum
You can talk about issues with k-meleon here.
"Make this browser default" does not work
Date: February 13, 2017 01:40PM
This option does not make K-Meleon default browser. After using it, Windows brings "Open with..." dialog when needed to open a web page. Neither K-Meleon appears in the "choose default programs" dialog. This is under 76 RC1.
Re: "Make this browser default" does not work
Date: February 13, 2017 11:19PM
just guessing: Is there a file "profile.ini" in the KM root folder?
Re: "Make this browser default" does not work
Date: February 14, 2017 01:00AM
No.
I finally succeeded to make it default browser with a lot of manipulations that included picking the executable file manually from the Program Files (x86) folder.