Examine source code of defyFormValidation

{
  "manifest_version": 2,
  "name": "defyFormValidation",
  "version": "2.0.2resigned1",
  "default_locale": "en-US",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "__MSG_extensionHomepage__",
  "author": "Christian Raue",
  "developer": {
    "name": "Christian Raue"
  },
  "applications": {
    "gecko": {
      "id": "defyFormValidation@craue.de",
      "strict_min_version": "52.0"
    }
  },
  "icons": {
    "24": "/icons/form-valid.svg"
  },
  "background": {
    "scripts": [
      "/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "/page-has-forms.js"
      ],
      "all_frames": true
    }
  ],
  "browser_action": {
    "browser_style": true,
    "default_title": "__MSG_buttonRunLabel__",
    "default_icon": "/icons/form.svg"
  },
  "options_ui": {
    "page": "/options.html"
  },
  "permissions": [
    "<all_urls>",
    "storage"
  ]
}