Yes, the dreaded bug where Firestorm causes your game to freeze and the only fix is reloading the page. I have quite a few logs recorded with it (4 or 5)... I don't think I have any in "Verbose mode" before it happened, but I'm sure I could get one since I encounter the bug about once a day when I run Firestorm builds. My animation speed is set at 8 or 9 and it only happens in multiplayer (usually after I've left the game idle for an hour or more).
Crashed flash once (plugin stopped responding), and hung the game 4 other times today while playing a firespam team in the league. No log, sry.
