I'm sure my signature is not correct, the server in question is on the vicibox 8.1 SVN Version:3439 DB Schema Version: 1633
I'm running into the same issue with chrome, only in this case, all the reps are using MACs...

I'm trying the implemented audio work around first, if that doesn't work, I'll try the script, I'll post an update here for what works in this situation.
UPDATE:
So far so good... In this case, the audio work around seems to have worked.
SYSTEM SETTINGS:
Agent Hidden Browser Sound: click_quiet volume: 25
Agent Hidden Browser Sound Seconds: 20
Special Note: Thank you Matt/ViciTeam for solving this effectively and efficiently.