Fulham have been charged with failing to ensure their players conducted themselves in an orderly fashion during their 2-1 Championship loss to Bristol City on Saturday.
The Cottagers felt Neeskens Kebano was fouled in the box in the 93rd minute, but referee Jeremy Simpson did not award a penalty.
It led to heated exchanges with Stefan Johansen and Tom Cairney being booked.
Fulham have until Friday (13 December) to respond to the charge.
Millwall have signed goalkeeper Frank Fielding.
The 31-year-old was released by Bristol City in May after six years and 181 appearances for the Ashton Gate side.
The Lions have not disclosed the length of contract the former England Under-21 international has signed.
“I think I’m coming into my peak years as a goalkeeper now. I’m always looking to improve, to try and get better, and I think this is the place for me to do that,” he told the club website.
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