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manifest.json

{
  "manifest_version": 2,
  "name": "Duolingo Language Learning Extension",
  "version": "1.0.0",
  "description": "Quick helpers for Duolingo Web: quick links, vocab lookup, and lesson reminders.",
  "permissions": [
    "contextMenus",
    "activeTab",
    "tabs",
    "storage",
    "notifications"
  ],
  "browser_action": {
    "default_title": "Duolingo Helper",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_script.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6f3fe818-38bf-4964-b342-80176aa86516}"
    }
  }
}