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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Vocabulary.com",
  "version": "1.1.0.1",
  "description": "With its uniquely effective word learning system, Vocabulary.com helps students learn and master words.",
  "icons": {
    "16": "icons/16x16-icon.png",
    "128": "icons/128x128-icon.png"
  },
  "app": {
    "urls": [
      "https://www.vocabulary.com/",
      "https://corpus.vocabulary.com/"
    ],
    "launch": {
      "web_url": "https://www.vocabulary.com/login/google"
    }
  }
}