Season brisket generously with salt and pepper; place in a slow cooker. Scatter carrots, onion, figs, apricots, and thyme evenly over and around brisket. Stir harissa into broth; pour mixture over brisket. Cover and cook on high until brisket is tender, 4 1/2 to 5 hours.
Remove thyme. Transfer brisket to a cutting board and let rest 15 minutes, then slice thinly against grain. Arrange slices on a platter, spoon vegetables and fruits evenly around them, and drizzle with some of pan juices. Serve with bread and remaining juices on the side.