How To Install Firefox 4 In Ubuntu 10.04 / 10.10 Via PPA Repository - The Proper Way

Firefox 4 (stable) will be released soon and I though I'd let you know how to install it in Ubuntu 10.04 and 10.10 - the proper way.

 

No, using Ubuntuzilla or the Mozilla Daily PPA (well, this PPA is relatively ok but you'll never get stable builds so you might start receiving Firefox 4.1 alpha updates - or whatever the next Firefox version will be called -, as soon as Firefox 4 is released) is not the proper way to install Firefox 4. Why? Read on!