Examine source code of Firetrash Dove

{
  "manifest_version": 2,
  "name": "Firetrash Dove",
  "version": "1.2resigned1",
  "description": "Replacing all images on website with the trash dove gif",
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_action": {
    "default_icon": "icons/icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "jquery.js"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "tabs",
    "webRequest"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{003d30de-c71d-404e-a15b-7a71651907cc}"
    }
  }
}