Bitcoin Client Software and Version Number: Jaxx 1.2
Operating System: Windows 10 64

I was wondering if anyone could help me:

I sent a transaction from my Jaxx (1.2 chrome extension wallet) for a small amount (5 Millibit) to another wallet. In this transaction, all of my funds were wiped out with the remaining going to a new address I've never interacted with. This new, unknown address is not any of my private or public keys. I've contacted Jaxx, and it's been 5 business days and they have no solutions. They said at least the funds at the new address have not been spent. I'm a bit frustrated. Can anyone help?