Twenty-eight female guards were unfairly dismissed by a security company because the client‚ Metrora.
The Football Association will investigate claims of abuse directed at Middlesbrough striker Mido by Newcastle supporters in last weekend's derby.
The Egypt striker, who joined Boro in the summer transfer window, faced barracking from the travelling Magpies support during the 2-2 draw.
"We will contact the clubs and get their views of what happened," an FA spokesman told BBC Sport.
"We will also look at the quotes from the player and take it from there."
Mido, who scored Boro's first equaliser, responded to the chanting: "Maybe some of them were drunk or something.
"I heard it, it was very clear and I understood what they were saying.
"The chants made me want to score more goals. I was delighted to score and I wanted another." - BBC