Gmail Checker - Multi Account Gmail Notifier

Get notifications for multiple Gmail accounts, and read or delete email without opening Gmail

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manifest.json

{
  "manifest_version": 3,
  "version": "1.1.8",
  "name": "__MSG_appname__",
  "description": "__MSG_description__",
  "default_locale": "en",
  "homepage_url": "https://gmplus.io?utm_source=gm_checker",
  "permissions": [
    "notifications",
    "storage",
    "alarms",
    "identity",
    "idle",
    "contextMenus",
    "nativeMessaging"
  ],
  "host_permissions": [
    "https://mail.google.com/",
    "https://accounts.google.com/"
  ],
  "action": {},
  "icons": {
    "16": "data/icons/colors/red/16.png",
    "32": "data/icons/colors/red/32.png",
    "48": "data/icons/colors/red/48.png",
    "64": "data/icons/colors/red/64.png",
    "128": "data/icons/colors/red/128.png",
    "256": "data/icons/colors/red/256.png",
    "512": "data/icons/colors/red/512.png"
  },
  "background": {
    "service_worker": "background.js"
  },
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/mail/u/*"
      ],
      "js": [
        "data/inject/watch.js"
      ],
      "run_at": "document_start"
    }
  ],
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}