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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Wikipedia Time Travel",
  "version": "0.2",
  "author": "Ricardo Joaquinito",
  "description": "See how Wikipedia pages evolved over time.",
  "icons": {
    "48": "img/icons/wtt_icon.png"
  },
  "action": {
    "default_popup": "popup/wikipedia_time_travel.html",
    "default_icon": {
      "48": "img/icons/wtt_icon.png"
    }
  },
  "background": {
    "service_worker": "background.js"
  },
  "permissions": [
    "activeTab"
  ]
}