
To install mouse gestures for Google Chrome, run the program, gMote.exe. Note that an icon appears next to your clock on the Task Bar at the bottom of the screen - a small white "g". You can right-click that icon to bring up a pop-up menu that lets you configure the program or instruct it to start when you log in to Windows.
Here is a video with gMote mouse gestures for Google Chrome in action:
For more info on how to install gMote and what exactly are the mouse gesture for a browser, visit this page.
Please note that if you're using Firefox, you can install All in one Gestures to be able to use mouse gestures. Opera has mouse gestures built-in.