how to install firefox 4 beta in ubuntu 10.04

This post will explain you – about installing Firefox 4 beta 3 on ubuntu 10.04(Lucid Lynx) by using Synaptic Package Manager and command line.For Linux based platform firefox has released Mindfield Web Browser,as experimental version of firefox 4 beta 3.I think it’s pretty fast than it’s older version due to the hybrid javascript engine – …