Examine source code of Meta Bugs

{
  "manifest_version": 2,
  "name": "Meta Bugs",
  "version": "0.4.0.10",
  "description": "Display in Bugzilla the transitive list of blocked bugs",
  "icons": {
    "48": "icons/meta-bug-48.png"
  },
  "developer": {
    "name": "Nicolas B. Pierron",
    "url": "https://github.com/nbp/meta-bugs"
  },
  "permissions": [
    "storage",
    "https://bugzilla.mozilla.org/show_bug.cgi?*",
    "https://searchfox.org/*",
    "https://crash-stats.mozilla.org/api/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "settings/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://bugzilla.mozilla.org/show_bug.cgi?*"
      ],
      "js": [
        "meta-bugs.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cf8f8633-77c5-4a0c-88fb-dfe07380b14d}"
    }
  }
}