How to listen to uninstallation event in javascript from a chrome extension?

Question

I\'m trying to clean some preferences files when a user uninstall my extension from chrome browser.

On google website, http://code.google.com/chrome/extensions/external_

Answer 1

You may use "setUninstallURL" method. Once your extension is being uninstalled, it will open specified URL so that you can do something on your server.

https://developer.chrome.com/extensions/runtime#method-setUninstallURL