Britt, who was a teammate of Moss at the Tennessee Titans in 2010, has been involved in several off-field incidents since entering the league in 2009, including pleading guilty to a dangerous driving charge.
Moss, who currently plays for the San Francisco 49ers, told The Tennessean: "From what I have seen Kenny Britt do, man, if he gets his mind right, Kenny Britt can get up in elite class very quickly. I am a big fan of his.
"But his [challenge] is more mental than it is physical. I hope it works out for him because he is quite a talent. That guy could be special."
The 24-year-old made 45 receptions for 589 yards and four touchdowns in 2012, having had three knee surgeries the previous year.