Mail Track for Gmail

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Mail Track for Gmail",
  "version": "1.0.22",
  "description": "Find out when your emails are read",
  "background": {
    "service_worker": "src/pages/background/index.js",
    "type": "module"
  },
  "action": {
    "default_popup": "src/pages/popup/index.html",
    "default_icon": "icon-34.png"
  },
  "chrome_url_overrides": {},
  "icons": {
    "128": "icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*",
        "https://inbox.google.com/*"
      ],
      "js": [
        "src/pages/content/index.js"
      ],
      "css": [
        "assets/css/contentStyle17107557921.chunk.css"
      ],
      "run_at": "document_start"
    }
  ],
  "host_permissions": [
    "https://us-central1-gmailtrack-main.cloudfunctions.net/*",
    "https://mail.google.com/*",
    "https://inbox.google.com/*"
  ],
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtU2UKA28QSZhNajOrUmp1YUegkoA4M+xXZsZRjUs3hei1dyqxnUkVH9SxqEbTkTosnq5ALYTcioY7cdgy/m7GRRIXCHt1rpM6auMbveoCs/1KBQ+W959dEM5LZhTAvEeUHjh9wwn032gvkloiC2LbrGiglBfui6XPyJSQ4y3j2VLoHOujme+9xPO60xWNFkjUY96DPhmfn6pLBz9mmp1KdeE4suRX6iZTHOvsUp9DSNd4cmB4IQ+U2lFUeFhOuCOyFTGHemfzi04aGLmN1o5ZqXV7OoSp2xV+f7bGAhLInzdl+7WKlG3LCHfu75Asv7ZZJG+/gtdm4H0Ze9xh1R/JQIDAQAB",
  "devtools_page": "src/pages/devtools/index.html",
  "oauth2": {
    "client_id": "888949007475-1v0fgiebb6k9sr4l0stbkfh3ujkidohm.apps.googleusercontent.com",
    "scopes": [
      "https://www.googleapis.com/auth/userinfo.email"
    ]
  },
  "default_locale": "en",
  "permissions": [
    "gcm",
    "notifications",
    "identity",
    "identity.email",
    "storage",
    "tabs",
    "scripting",
    "declarativeNetRequest"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "pageWorld.js",
        "assets/js/*.js",
        "assets/css/*.css",
        "icon-128.png",
        "icon-40-warning.png",
        "icon-34.png",
        "icon-invisible-20.png",
        "unread-80.png",
        "read-80.png"
      ],
      "matches": [
        "*://*/*"
      ]
    },
    {
      "resources": [
        "pageWorld.js"
      ],
      "matches": [
        "https://mail.google.com/*"
      ]
    }
  ]
}