Debian by default comes with Iceweasel which is “based on firefox”, but not quite the same as installing the original Firefox.
To install Firefox, do the following:
Add a package source to apt:
sudo emacs /etc/apt/sources.list.d/firefox.list
Now add the following line to this file:
deb http://packages.linuxmint.com debian import[/code] Now, add the key for this source:sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com 3EE67F3D0FF405B2
Now update your sources and install as usual:sudo apt-get update sudo apt-get install firefox