https://worker.mturk.com/?filters[search_term]=pandacrazy=onReally? I've been using it on Chrome the same as the one I'm turking on, and both with the old site. The problem for me with doing one of Firefox is that having both Chrome and Firefox open really slows my computer down. But, if it catches me more hits I'd try it.
And how would I change PC to use the new worker website instead? Sorry if that sounds basic but now I have PC set up I just open it up and it starts without choosing one site or the other.