I use Thwirl to keep track of both but FF is where I spend most of my time. I can never tell if Twitter updates are paused or not. - Larry Kless via twhirl
FF is up always at home, but so it twitter--both via Thwirl. Access to both is blocked at work. - BISQ via twhirl
I open both simultaneously and check both equally. I usually go to Twitter first. Unlike others I am vigorously supporting Twitter and want to see the service succeed by being reliable and stable. The community there is great. - James
Twitter as I have to right tools. FF still feels like requiring a lot of time, so I'm avoiding it as much as possible. - Alex Popescu
FF by far the most of any social networking app out there - Susan Beebe
FF. I've still got Twitter open in Twhirl, but I rarely look at it now, usually only when it beeps to let me know someone has said something to me, or if I need to get message out to a particular group (it's still strong in terms of my Australian friends..although many are on Plurk now). - Duncan Riley