Change default applications easily in GNOME

“Like some other desktop environments, GNOME comes with a set of
pre-configured defaults to open files and launch applications,
depending on the type of file. For instance, URLs will open by
default in a Web browser, emails will open in a mail client, text
files will open with a text editor. Depending on the applications
installed and what distribution you are using, these defaults may
vary and, more importantly, they may not be the defaults that you
want.

“Configuring default applications and associations in GNOME is
easy. To change the global default application, go to System |
Preferences | Preferred Applications. Here, you can set your
preferred default browser, mail reader, multimedia player, various
accessibility programs, and the default terminal application that
you want to use. So if you prefer Thunderbird to the GNOME default
of Evolution, you would make the change here.”

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