Defenestration

Defenestration lets you define custom keyboard shortcuts for common window and tab operations. This uses Chrome's built-in support for shortcuts, meaning they work everywhere, robustly. Similar extensions inject keyboard handler code directly into every web page you open, which is unreliable and doesn't work in blank tabs or non-HTML files.

As a Linux user, I made this plugin so I could use Alt bindings rather than Windows-like Ctrl bindings. But you can use it for whatever you want.

Assign keyboard shortcuts by clicking "Keyboard Shortcuts" at the very bottom of the "Extensions" page found under "More Tools". Or just click the Defenestration icon.

Here's the full list of operations you can bind:

* Close Window

* Duplicate Tab