How to *really* set chrome as the default Ubuntu browser

look at: ~/.local/share/applications/mimeapps.list

if the file is not there, create an empty one, then use the chrome feature to set it itself as default browser. If this not work, try adding this content. (check for the right .desktop file for Google Chrome)

[Added Associations]
x-scheme-handler/http=chromium-browser.desktop

[Default Applications]
x-scheme-handler/http=chromium-browser.desktop