Examine source code of Phishing Detector

{
  "manifest_version": 2,
  "name": "Phishing Detector",
  "version": "1.0",
  "description": "Detect and warn about potential phishing websites.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Phishing Detector"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{157d3c09-90d9-4fd0-ba27-a70815a61406}"
    }
  }
}