How-to Install Firefox Nightly 27 Ubuntu
The Guide Simply Show How-to Install Firefox Nightly 27 Browser i686 for Linux Ubuntu 12.04-Precise/13.04-Raring/13.10-Saucy 32/64bit Unity Desktop.
The Firefox Nightly Version Coexist Perfectly with the Eventual Others Firefox Installations without Making Any Troubles, this Meaning that an Unique Firefox Base Environment will be Shared between All the Firefox Versions on the System.
More than this Once Installed it Will Plug-In the Firefox Nightly Channel and Like Every Other Firefox Version in the Future will Follow to be Automatically Updated to the Newest Firefox Nightly Release. So it is Not a Wasting Time because You Install It Once and Keep Forever Freshly Updated :)
The Firefox Nightly 27 Version can Coexist with the Others Firefox Versions without Troubles, this Mean that Once Fired Up it Will Just Load the Default Firefox Environment.
More than this Once Installed it Will Plug-In the Firefox Nightly Channel and Follow Automatically to be Updated to New Beta Releases.
To Make Easier the Visualization of the Entire Process I have Inserted the Essentials Screenshots of the Installation.
Inside the Install Firefox Nightly 27 Ubuntu you will Find also a Link to How-to Create a Launcher for the Firefox Nightly Browser on Ubuntu Desktop.

Download Firefox Nightly 27 Ubuntu:
Firefox 27 i686 tar.bz2
Please Turn Off Ad Blocker and Refresh Page to Enable Link to Content Here...
- Double-Click on the Archive and Extract into /tmp

- Open Terminal Window
- Relocate Firefox Nightly
Login as SuperUser
sudo su
Make a Firefox Directory
mkdir /opt/firefox
Move Firefox Into firefox-Nightly so to Prepare for a Possible Firefox Multi-Version Coexistence mv /tmp/firefox /opt/firefox/firefox-nightly
Make a Symlink for Easy-Starting
ln -s /opt/firefox/firefox-nightly/firefox /usr/local/bin/firefox-nightly
Next you Can Start Firefox from Terminal with firefox-nightly
This Complete the Firefox Nightly 27 Ubuntu Installation.
Create a Custom Firefox Launcher:
Launcher for Ubuntu-Unity
How-to Install Google-Chrome Browser on Ubuntu:
Installing Google-Chrome for Ubuntu
So Here I Hopefully Show Exactly How-to Install Firefox Nightly 27 for Ubuntu Linux.