Clock
The extension will show you the current time
Additional files are visible only to premium users
manifest.json
{
"browser_action": {
"default_icon": "icon.png",
"default_popup": "popup.html"
},
"update_url": "https://clients2.google.com/service/update2/crx",
"description": "The extension will show you the current time",
"name": "Clock",
"manifest_version": 2,
"version": "1.0"
}