Examine source code of FilterkedIn

{
  "description": "Filters linkedin",
  "manifest_version": 2,
  "name": "FilterkedIn",
  "version": "1.1",
  "homepage_url": "https://github.com/mdn/webextensions-examples/tree/master/borderify",
  "icons": {
    "48": "icons/border-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/mynetwork/"
      ],
      "js": [
        "filterkedIn.js"
      ]
    }
  ],
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f5418280-cec3-4194-94fd-183867f7fd61}"
    }
  }
}