Examine source code of GitHub Unveiler (FF)

{
  "manifest_version": 2,
  "name": "GitHub Unveiler (FF)",
  "version": "0.2.0",
  "description": "Replaces GitHub usernames with display names in GitHub and GitHub Enterprise instances.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "optional_permissions": [
    "https://*/*"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_action": {
    "default_title": "Enable GitHub Unveiler (FF)"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "web_accessible_resources": [
    "icon16.png",
    "icon32.png",
    "icon48.png"
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "github-unveiler-ff@example.com",
      "strict_min_version": "115.0"
    }
  }
}