Gmail Tracker - free email tracker for gmail

manifest.json

{
  "background": {
    "service_worker": "background.js"
  },
  "content_scripts": [
    {
      "css": [
        "select2.css"
      ],
      "js": [
        "inboxsdk.js",
        "inject/gmassloader.js"
      ],
      "matches": [
        "http://mail.google.com/*",
        "https://mail.google.com/*",
        "https://inbox.google.com/*",
        "http://inbox.google.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "description": "Gtracker lets you track the emails you send with Gmail to know when they are opened",
  "icons": {
    "48": "icons/GMass48.png",
    "128": "icons/GMass128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "icons/campaign.png",
        "icons/sheet.png",
        "icons/GMass32.png",
        "icons/GMass128.png",
        "inject.js"
      ],
      "matches": [
        "http://mail.google.com/*",
        "https://mail.google.com/*",
        "https://inbox.google.com/*",
        "http://inbox.google.com/*"
      ]
    }
  ],
  "manifest_version": 3,
  "name": "__MSG_name__",
  "permissions": [
    "scripting"
  ],
  "host_permissions": [
    "http://mail.google.com/*",
    "https://mail.google.com/*"
  ],
  "short_name": "Gtracker",
  "version": "1.0.0",
  "default_locale": "en",
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}