Simple

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "__MSG_name__",
  "short_name": "Simple",
  "version": "6.2.0.38",
  "description": "__MSG_description__",
  "author": "Stefan vd",
  "homepage_url": "https://www.stefanvd.net/support/",
  "icons": {
    "16": "images/icon16.png",
    "24": "images/icon24.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "96": "images/icon96.png",
    "128": "images/icon128.png"
  },
  "default_locale": "en",
  "browser_action": {
    "default_icon": {
      "19": "images/icon19.png",
      "38": "images/icon38.png"
    },
    "default_title": "__MSG_name__",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.stefanvd.net/*"
      ],
      "js": [
        "scripts/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "content_security_policy": "default-src 'none'; style-src 'self'; media-src 'none'; child-src 'none'; connect-src 'none'; script-src 'self'; img-src 'self'; object-src 'none'",
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+M",
        "mac": "MacCtrl+Shift+M"
      }
    }
  },
  "minimum_chrome_version": "103",
  "offline_enabled": true,
  "permissions": [
    ""
  ]
}