Update: Firefox 3 Beta 5 has been released, click here for updated instructions.
Mozilla Firefox Beta 4 was released on Monday, March 10th. Want to try it out today in Ubuntu? Hereâ€™s an easy one line command that will install it in Ubuntu (or another Linux distribution) alongside your existing Firefox. Please note: the Firefox 3 Beta 4 release is intended for testing purposes only.
This post is an update to my previous instructions for Firefox 3 Beta 3.
Backup your profile
Before you run Firefox, you may want to backup your profile from Firefox 2. I havenâ€™t had any problems sharing the profile so far, but donâ€™t let Firefox 3 update update your extensions when it starts to avoid incompatibilities. This command will backup the Firefox profiles folder to firefox_profile_backup in your home folder:
cp -r ~/.mozilla/firefox/ ~/firefox_profile_backup
If you need to restore from the backup, do so by replacing the hidden .mozilla/firefox folder with your backup.
Install Firefox 3 Beta 4
Let’s install Firefox now. The command below does two things: it downloads Firefox to your home directory using wget, and extracts the Firefox folder there. Copy and paste the command (itâ€™s one line) and run it in your terminal:
wget -P ~ ftp://ftp.mozilla.org/pub/firefox/releases/3.0b4/linux-i686/en-US/firefox-3.0b4.tar.bz2 && tar xjf ~/firefox-3.0b4.tar.bz2 -C ~
Once that command has completed, you can delete the firefox-3.0b4.tar.bz2 file in your home directory.
Run Firefox 3 Beta 4
Before running Firefox 3, close Firefox 2. Double-click the firefox file inside the firefox folder in your home directory, or run this command:
You can add Firefox 3 to your GNOME Applications menu using the menu editor in System->Preferences->Main Menu.
If you have any problems installing Firefox, feel free to leave a comment on this post.