Examine source code of Form Tools

{
  "manifest_version": 2,
  "name": "Form Tools",
  "version": "1.3.1resigned1",
  "icons": {
    "24": "/content/images/icon.svg",
    "48": "/content/images/icon.svg",
    "96": "/content/images/icon.svg"
  },
  "options_ui": {
    "page": "/content/options.html"
  },
  "browser_action": {
    "default_icon": {
      "24": "/content/images/icon.svg",
      "48": "/content/images/icon.svg",
      "96": "/content/images/icon.svg"
    },
    "default_title": "Form Tools",
    "default_popup": "/content/popup.html"
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "webNavigation"
  ],
  "applications": {
    "gecko": {
      "id": "form-tools@manngo.net",
      "strict_min_version": "48.0",
      "strict_max_version": "50.*"
    }
  },
  "web_accessible_resources": [
    "/content/zoom-template.css"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "/content/do-form-tools.js",
        "/content/library.js"
      ]
    }
  ]
}