About the Browser-Based App
The browser-based app is a version of GoTo Webinar that doesn't require any downloads! It is fully contained within the web browser.
Most attendee features are available on the browser app. View Feature Comparison Chart by Browser Type for details on what features are available to you based on your browser (Google Chrome or Microsoft Edge is recommended). View Are there limitations if I join the webinar from a browser? for details on what's not supported on the browser app.