Google Chrome for Linux, It's NOT Beta now!
If you are running the Google Chrome for Linux beta version on ubuntu, you have to un-install it before install the Stable version.
To un-install Google Chrome for Linux Beta on ubuntu:
Click System from the top menu -> Administration -> Synaptic Package Manager
Type Chrome in the search box
Mark google-chrome-beta for Removal
Then click Apply
To install Google Chrome for Linux Stable version on ubuntu:
in Synaptic Package Manager
Mark google-chrome-stable for installation