- Type 'diff' on address bar
- Press space or tab
- Type what you would like to search. example: 'human and animal'
- Press enter
- It will search on Google as 'What is the difference between humans and animals'
Click here to install the extension
or visit https://chrome.google.com/webstore/detail/what-is-the-difference-be/obhapnlnfjfbhcbokiemebidfodneopg