To change this setting, we’ll use the update-alternatives command.
You should see something similar to this. You’ll notice that konqueror is the default browser on my computer right now.
If I wanted to select firefox as the default browser, I could just type 1 and hit enter.
There are 2 alternatives which provide `x-www-browser’.
Selection Alternative ———————————————– 1 /usr/bin/firefox *+ 2 /usr/bin/konqueror
Press enter to keep the default[*], or type selection number: