Briggs is still attempting to recover from an ankle injury that forced the weakside linebacker to miss the Bears' 23-20 loss to Seattle. Urlacher was limited one day in practice last week with a groin injury.
Meanwhile, rookie safety Major Wright participated in practice for the first time since badly injuring his hamstring in the Bears Week 2 win in Dallas.
The Bears listed Wright as having limited participation.
"Very encouraging, it seems like forever since we've had a chance to work with Major," coach Lovie Smith said. "He was able to do limited work today, that hamstring is coming along. He should be fresh. We should get a fresh, bright-eyed guy when he gets back. We have a couple of injuries in the secondary right now, but we'll be a better football team when Major comes back."