Examine source code of OctoProject

{
  "manifest_version": 2,
  "name": "OctoProject",
  "version": "1.3.1resigned1",
  "description": "Helps to work with multiple projects on GitHub",
  "icons": {
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png",
    "256": "icons/256.png"
  },
  "options_ui": {
    "page": "options/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://github.com/*"
      ],
      "js": [
        "content_script.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "applications": {
    "gecko": {
      "id": "marcin.warpechowski@starcounter.com"
    }
  },
  "page_action": {
    "default_icon": "icons/32.png",
    "default_title": "OctoProject"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "web_accessible_resources": [
    "content_script.js",
    "ui-popup-build.js",
    "palindrom-js-listener.js",
    "injected_script.js"
  ]
}