Navigate to your Profile on the upper left corner after you login and see your Meeting URL:
Copy your Meeting URL and paste into your Chrome or Firefox browser:
Press the Enter key and you will start an ad hoc meeting.
You may also add your Meeting URL to your Bookmarks Toolbar so you are ready to go at the click of a button!
Go to your browser's area to manage Bookmarks (Chrome shown here):
Paste your Meeting URL in to add a Bookmark:
You will now have instant access to starting a quick meeting from your browser's Toolbar!