ScriptSnap

With this extension you can execute any JavaScript code by pressing a few buttons on your keyboard. Those JS snippets can be arranged into groups with unlimited nesting, and there is a nice UI to navigate through. Convinient editor and jQuery-like syntax for your code are another cool features.

It would be easier to understand how these JS shortcuts works, if you just install extension, take a look at it's settings and try out default config.

Quick start: install, then open any page (http://example.com is a good one) and press "E", "O", "Enter" on your keyboard.

Please note: it will not work on any special pages, like new blank page, extensions list, etc., and Chrome Webstore - it's a browser restriction.

Permission to read your data on all websites needed solely for inserting keypress listener.

This extension has an open source code, it can be found at https://github.com/dchekanov/scriptsnap.

Suggested usage:

1. Bookmarks: simple (just static URL), smart (URL dependent on current URL and/or page content), parameterized (URL with parameters values taken from user input), mixed (parameterized with extra logic).