manifest.json

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "1.0.1",
  "default_locale": "en",
  "action": {
    "default_popup": "popup.html",
    "default_title": "__MSG_actionTitle__",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "service_worker": "dist/background.js"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src https://fonts.gstatic.com"
  },
  "permissions": ["storage", "activeTab", "scripting", "tabs", "fontSettings"],
  "host_permissions": ["http://*/*", "https://*/*"],
  "content_scripts": [
    {
      "matches": ["<all_urls>"],
      "js": ["dist/contentScript.js"],
      "run_at": "document_start"
    }
  ]
}