Please note that Chrome 45 (45.0.2454.15) is available only as Beta and comed with the following features:
Install Chrome 45 on Linux Ubuntu and Debian Systems
Google Chrome can be installed via Ubuntu Software Systems as it is available via the Google repositories for Linux Ubuntu Systems.
Here’s the Terminal commands to install the latest version of Chrome on Ubuntu and Debian Systems:
$ sudo sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
$ wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install google-chrome-beta
To uninstall and remove Chrome web browser from Linux Ubuntu Systems, run the command given below:
$ sudo apt-get remove google-chrome-beta