Examine source code of Intensify!

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "author": "Julien Bellue",
  "version": "0.3resigned1",
  "default_locale": "en",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "intensify-webext@github.com-jbellue",
      "strict_min_version": "42.0"
    }
  },
  "homepage_url": "https://github.com/jbellue/intensify-webext",
  "permissions": [
    "storage",
    "contextMenus",
    "activeTab",
    "tabs",
    "<all_urls>"
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  }
}