You should read through (and post reports to) the main thread for this problem: <a href="https://app.roll20.net/forum/post/8426341/stuck-on-loading-screen-dot-dot-dot" rel="nofollow">https://app.roll20.net/forum/post/8426341/stuck-on-loading-screen-dot-dot-dot</a> Note that the latest stable non-beta release of Firefox and Chrome are the only officially supported browsers for Roll20. Anything is "use at your own risk" and may stop working at any time. Also, many browser plugins, addons, and extensions (even if specifically to work with Roll20) are not officially supported either, and have been known to cause problems.