gPass/firefox_webextension/background.js

browser.runtime.onMessage.addListener(
    function(request) {

	if (request.type == "notification")
	{
	    options = {
		type: "basic",
		title : "gPass",
		message : request.options.message,
		iconUrl:browser.extension.getURL("icons/gpass_icon_64.png")
	    };

	    browser.notifications.create("gPass", options);

	    window.setTimeout(function() {browser.notifications.clear("gPass")}, 2000);
	}
    });