On Thu, Jul 21, 2011 at 9:26 PM, John A. Sullivan III
Zimbra is a heavy AJAX application. I don't know if the application John Williams is using is also heavily AJAX driven - John
The problem occurs most often for me when a gmail tab was open. I think gmail uses AJAX, so AJAX may be the crux of the problem. The problem NEVER occurs for me with x2goclient 3.01-13. It frequently occurs with 3.99 when a gmail tab is open in firefox.
Slightly different than the problem you described is that for me, while it is USUALLY limited to firefox freezing while the other applications continue to work, sometimes it can get into a state where the other applications freeze as well. But not always. And suspending the session from 3.99 and installing 3.01-13 and resuming the session eliminates the freezes. So it is definitely 3.99 that is at the root of the problem.