1. Select text on a web page using the mouse.
2. Press a keyboard shortcut to search for the selected text on your desired website.
Default shortcuts:
Alt+Q = Google
Alt+W = Wikipedia
Alt+A = Google Images
Alt+S = YouTube
The target search websites and keyboard shortcuts can be changed from the extension settings menu.
Source code: https://github.com/Juuso-h/hotkeys-for-search