Examine source code of Analyze-it

{
  "manifest_version": 2,
  "id": "jid1-wpeLy0aB4veaxA@jetpack",
  "name": "Analyze-It",
  "description": "Opens various web based page and domain tools in a new tab",
  "version": "1.0.1resigned1",
  "author": "Timothy Tocci",
  "homepage_url": "https://addons.mozilla.org/en-US/firefox/addon/analyze-it/",
  "applications": {
    "gecko": {
      "strict_min_version": "56.0a1",
      "id": "jid1-4Y2Ts8pnN0ow1w@jetpack"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "menus",
    "activeTab"
  ],
  "icons": {
    "16": "icons/icon_16.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png"
  }
}