Examine source code of PharmDNA

{
  "manifest_version": 2,
  "name": "PharmDNA",
  "version": "1.1resigned1",
  "description": "Adds genotype information to the PharmGKB website.",
  "icons": {
    "48": "icons/pharmdna-48.png",
    "96": "icons/pharmdna-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.pharmgkb.org/*"
      ],
      "js": [
        "pharmdna.js"
      ]
    }
  ],
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{58033ba2-c832-403e-8675-1e0b5197c83b}"
    }
  }
}