Examine source code of SecureCircle Connector

{
  "version": "4.4.19",
  "manifest_version": 2,
  "default_locale": "en",
  "name": "SecureCircle Connector",
  "description": "Facilitate a SecureCircle user's ability to secure data and be informed of secured data's interactions in the browser.",
  "browser_specific_settings": {
    "gecko": {
      "id": "fhconnector@securecircle.com",
      "strict_min_version": "50.0"
    }
  },
  "minimum_chrome_version": "35",
  "icons": {
    "16": "securecircle-016.png",
    "48": "securecircle-048.png",
    "128": "securecircle-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_idle",
      "js": [
        "content_idle.js"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end",
      "js": [
        "content_end.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "downloads",
    "webRequest",
    "activeTab",
    "nativeMessaging",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup.html"
  }
}