Examine source code of Tabz

{
  "browser_action": {
    "default_icon": {
      "19": "img/20.png",
      "38": "img/40.png"
    },
    "default_popup": "popup.html",
    "default_title": "SaveTabs"
  },
  "content_scripts": [
    {
      "js": [
        "js/bootstrap.min.js",
        "js/jquery.min.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "description": "Save all of your tabs",
  "icons": {
    "16": "img/20.png",
    "48": "img/50.png",
    "128": "img/100.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "savetabs@home.local"
    }
  },
  "manifest_version": 2,
  "name": "Tabz",
  "permissions": [
    "storage",
    "webRequest",
    "tabs",
    "webNavigation",
    "activeTab",
    "management"
  ],
  "version": "1.0.0.0"
}