To set the default web browser type:
sudo update-alternatives --config x-www-browser
This will lead to:
lexus@lexus:~$ sudo update-alternatives --config x-www-browser There are 3 choices for the alternative x-www-browser (providing /usr/bin/x-www-browser). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/bin/google-chrome 200 auto mode * 1 /usr/bin/firefox 40 manual mode 2 /usr/bin/google-chrome 200 manual mode 3 /usr/bin/opera 200 manual mode Press enter to keep the current choice[*], or type selection number:
To set default editor:
update-alternatives --config editor
To edit (or leave with defaults) all variants, use:
sudo update-alternatives --all