Examine source code of Fire PR

{
  "name": "Fire PR Chrome Extension",
  "applications": {
    "gecko": {
      "id": "{983ac399-9290-4d37-b362-fff1a73efbdb}",
      "strict_min_version": "42.0"
    }
  },
  "short_name": "Fire PR",
  "description": "The official fire-pr extension for Chrome",
  "version": "0.0.7resigned1",
  "author": "3YOURMIND GmbH",
  "content_security_policy": "script-src 'self' http://localhost:8098; object-src 'self'",
  "manifest_version": 2,
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_action": {
    "default_title": "fire-pr-extension",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "storage"
  ]
}