Examine source code of Ecoify Extension

{
  "manifest_version": 2,
  "name": "Ecoify Extension",
  "short_name": "ecoify",
  "description": "This extension will eco-ify your browsing behaviour.",
  "version": "1.0.2resigned1",
  "icons": {
    "32": "assets/icon_on_32.png",
    "48": "assets/icon_on_48.png",
    "128": "assets/icon_on_128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "assets/icon_on_48.png",
    "default_popup": "popup/popup.html",
    "default_title": "Ecoify Firefox"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": false
  },
  "permissions": [
    "activeTab",
    "webRequest",
    "storage",
    "unlimitedStorage",
    "webRequestBlocking",
    "*://*.google.com/*",
    "*://*.google.de/*",
    "https://5tepzfsmxg.execute-api.eu-central-1.amazonaws.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "ecoify-firefox@ecoify.org"
    }
  }
}