Examine source code of SimilarTech Prospecting

{
  "version": "0.3.1",
  "name": "__MSG_appName__",
  "manifest_version": 2,
  "description": "__MSG_appDescription__",
  "icons": {
    "16": "images/icons/16.png",
    "32": "images/icons/32.png",
    "48": "images/icons/48.png",
    "128": "images/icons/128.png"
  },
  "default_locale": "en",
  "web_accessible_resources": [
    "images/*/*.png",
    "images/*.png",
    "style/*.css",
    "style/*/*.css",
    "script/*/*.js",
    "script/*.js",
    "fonts/*"
  ],
  "permissions": [
    "tabs",
    "storage",
    "http://*/*",
    "https://*/*",
    "webRequest",
    "webRequestBlocking"
  ],
  "browser_action": {
    "default_icon": {
      "19": "images/browser-action/19.png",
      "38": "images/browser-action/38.png"
    },
    "default_title": "SimilarTech Prospecting",
    "default_popup": "information.html"
  },
  "applications": {
    "gecko": {
      "id": "addons@similartech.com"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.similartech.com/*"
      ],
      "js": [
        "scripts/contentscript.js"
      ],
      "run_at": "document_start",
      "all_frames": false
    }
  ]
}