It's very easy to uninstall the ContactMonkey extension from Chrome/Gmail. Follow these super simple instructions:
- Copy and paste chrome://extensions into the Chrome address bar
- On the Extensions page, uncheck the "Enabled" checkbox next to ContactMonkey, or click the trash can icon by the extension to completely remove it.
Note: you can go back to your list of extensions at any time to re-enable the ContactMonkey extension if you didn't delete it.