callout@lackac.hu Callout 0.3.2.1 László Bácsi Notification Services for Javascript https://addons.mozilla.org/en-US/firefox/addon/7458 chrome://callout/content/about.xul chrome://callout/content/options.xul chrome://callout/content/callout.png {ec8030f7-c20a-464f-9b0e-13a3a9e97384} 2.0 3.0.*