The Jindabyne star is a patron of the Adopt Change organisation, which is pushing for a reform of regulations to speed up the adoption process and boost the number of parentless children being housed.
The campaign is now gathering pace as Adopt Change staff are working with Australian Prime Minister Tony Abbott, and Furness is adamant all their efforts will pay off.
She tells the country's Herald Sun newspaper, "I'm so excited and I've learnt so much from this experience. It shows if you stick at something, you are going to get results. We are talking about changing a whole culture. We are in the process of doing that.
"We are working with the Prime Minister's office and we are looking to really make a difference to so many children. It feels really good."