Millwall fans are banned from Saturday's game in a similar measure taken against Leicester supporters when the two teams played at the New Den last month.
"We've looked at every aspect of security and tightened up on certain areas because we'd anticipated this was going to be a difficult match," said Millwall security and operations advisor Ken Chapman.
"It would be naive to expect anything but a hostile atmosphere. But there is no excuse for any of our supporters to go up there and we've asked our fans to be responsible.
"The match at the New Den went without incident and we're hoping for the same level of professionalism from Leicester."