text: Title: Intermittent proxy-with-auth not being set before page load
  Body: ## Intermittent proxy-with-auth not being set before page load
  
  Since the Manifest V3 extension conversion, there is a short delay before the auth is set, which may lead to an auth prompt appearing if navigating to a page immediately after the web browser is opened when using proxy-with-auth. This delay is a fraction of a second. It can be avoided by added a tiny delay after the web browser is opened (before navigating to a URL).