Tab Groups Simple Controller

Supports automatic collapse or expand of tab groups on browser startup, and allow clicking to collapse or expand all groups

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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "author": "Light",
  "homepage_url": "https://github.com/LightAPIs/tab-groups-simple-controller",
  "version": "0.1.0",
  "default_locale": "en",
  "minimum_chrome_version": "89",
  "icons": {
    "16": "icons/icon_16.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "permissions": [
    "tabGroups",
    "contextMenus"
  ],
  "background": {
    "service_worker": "js/background.js",
    "type": "module"
  },
  "action": {}
}