Examine source code of aysko_tst_1

{
  "description": "Demonstrating webRequests",
  "manifest_version": 2,
  "name": "aysko",
  "version": "1.0",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "demo1@aysko.com"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "borderify.js"
      ]
    }
  ]
}