Ok, seems that whenever you refresh the page it closes and reopens gabbly, also if you click a new link on the page, it will shut down the window. I was getting around it by just leaving a tab open on the FR homepage with gabbly and browsing on another tab. But I also found these tools
here with some browser addons. I couldn't get the IE one to work but the FF works fine. You can have gabbly on the sidebar and browse wherever, even other websites and stay in the chat.