Using Kango write single code which works in the same way with all major browsers: Firefox, Chrome, Internet Explorer, Safari, Opera.
Kango provides developer-friendly API increasing development rate up to 6x times (cross-domain requests, user interface, browser events, tabs management, etc.).
Add your own dynamically modifiable button to browser, HTML popup or options page by just a couple of lines of code.
Kango provides full access to DOM and have built-in support for Greasemonkey-style user scripts.
Send queries to server, process data and do any other complex tasks in the background (asynchronously).