Examine source code of NewsBlur.com-Notifier

{
  "manifest_version": 2,
  "name": "NewsBlur.com-Notifier",
  "description": "Shows a button with the number of unread NewsBlur-articles",
  "version": "0.0.8resigned1",
  "icons": {
    "32": "icons/icon.png"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "64": "icons/icon-64.png"
    },
    "default_title": "Visit NewsBlur.com"
  },
  "permissions": [
    "activeTab",
    "alarms",
    "tabs",
    "webNavigation",
    "webRequest",
    "*://*.newsblur.com/",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  },
  "applications": {
    "gecko": {
      "id": "newsblur_notifier@thisusernamewasavailable.addons.mozilla.org",
      "strict_min_version": "51.0a1"
    }
  },
  "author": "ThisUserNameWasAvailable"
}