Mozilla Firefox 4.0 RC1 Released for Ubuntu

A good news for all Ubuntu users out there: The latest release of our favourite browser Mozilla Firefox 4.0 codename MineField i.e the Release Candidate has been released. Yes, its out and ready to roll. In this post, we will discuss how to install Firefox 4.0 RC without losing your preinstalled Firefox 3.6 or any of your bookmarks, addons etc.


Firefox 4.0 RC-1 [Post Updated]


Basic Method

1) Simply extract the file, rename it to ‘Firefox RC-1’ and copy that folder. Now type :

sudo nautilus

2) In the Nautilus window, browse the Filesystem to /usr/lib. Paste the file there and close Nautilus.
3) Now, goto System > Preferences > Main Menu and link the directory /usr/lib/Firefox RC-1/firefox and add the link to Applications > Internet.
4) Its all done. Now you can enjoy your Firefox 4.0 RC without losing your bookmarks, your stable Firefox 3.6 or any of your data.

PPA Method

For Ubuntu 10.04 and 10.10 -> Open the terminal and type this PPA :

sudo add-apt-repository ppa:mozillateam/firefox-next
sudo apt-get update
sudo apt-get install firefox-4.0

and its done.

New Features of the Minefield RC

Besides the general stability, performance, and compatibility improvements, there are a lot of new features & updates:

  • The default homepage design has been refreshed.
  • WebGL is enabled on all platforms, but, like for other hardware acceleration features, many buggy drivers or driver versions are blocked.
  • Overhaul of the bookmarks and history code, enabling faster bookmarking and startup performance.
  • Additional polish for the Firefox Add-ons Manager.
  • Crash protection for Linux when there is a crash in the Adobe Flash, Apple Quicktime or Microsoft Silverlight plugins.
  • New HTML5 parser & support for more HTML5 form controls.
  • HTML5 Forms API makes web based forms easier to implement and validate.
  • Firefox now supports the HTML5 video “buffered” property.

For more details on this release, see Release Notes.

Njoy Minefield !

About Cell aka Abhishek

A Technology Fanatic, Open-source lover, a future Entrepreneur, & an Innovative thinker, is presently working as a R&D Engineer in the Wind Turbine Industry.