UPDATED: Install Firefox 3 Beta 3 in Ubuntu with One Command
Posted February 15, 2008 
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UPDATE: It’s now available in the universe repositories. Instructions here.
Heard about the new Firefox 3 Beta 3 and want to try it out in Ubuntu? Here’s a one line command that will install it in Ubuntu (or anther distro) alongside your existing Firefox.
The command does two things: it downloads Firefox to your home directory using wget, and extracts the Firefox folder there. Copy and paste the command (it’s one line) and run it in your terminal:
wget -P ~ ftp://ftp.mozilla.org/pub/firefox/releases/3.0b3/linux-i686/en-US/firefox-3.0b3.tar.bz2 && tar xjf ~/firefox-3.0b3.tar.bz2 -C ~