Examine source code of Better LinkedIn

{
  "manifest_version": 2,
  "name": "Better LinkedIn",
  "version": "1.1.0",
  "description": "Improves the LinkedIn user experience.",
  "permissions": [
    "*://*.linkedin.com/*"
  ],
  "icons": {
    "64": "logo.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{1426f060-18a0-49ba-a69d-deb0bcfe1e56}"
    }
  }
}