Gmail Checker - Multi Account Gmail Notifier

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

Premium users can view and search full source code, and see the source code differences between two versions.

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"
}