How to update Firefox in Ubuntu Linux

Chromium May Replace Firefox As Default Browser In Ubuntu 13.10

Update Firefox to the latest version | Firefox Help

how to update firefox on ubuntu? - Ask Ubuntu

The firefox on my ubuntu requires me to update Flash plugin and follow the link I get to the page which ask me to download the latest Firefox package. I download the tar.gz and unzip it.

Actualizar a Firefox 25 en Ubuntu 13.10 y Linux Mint – UbunTux

Actualizar Firefox en Ubuntu 13.10 - YouTube

How to install firefox on Ubuntu 13.10 (Saucy Salamander)

firefox update ubuntu 13.10&start=50