Its a 1999 Mercury Couger. The front brakes keep sticking when driving down the road. It doesn't do it all of the time, but it does it a lot. Any ideas?

Bad caliper's, Bad hose's to the caliper, Or A long shot, The master cylinder. To eliminate the caliper's open the bleeder screw's. If they free up, it's the brake hose's collapsing. The pressure of the master cylinder force's fluid through, But the pressure can't escape after the brake's ae released.