Playing on the left-hand side of Watford's back three Britos came up against Salah with regularity and came off second best as the Egyptian scored four and laid on another in a 5-0 win for Liverpool.
The game was just Britos' third of 2018 but despite his lack of action he is not keen on remembering the game for any longer than is absolutely necessary.
"Everyone is upset, angry as well because we didn't play the way we wanted or prepared," Britos told 'WatfordFC.com' following the game.
"It's hard to lose like that. Especially for me after three months out.
"I did a lot of mistakes and I want to forget this game as quickly as possible and to prepare for the next game at home, for three points.
"Salah is very strong player, very quick. He played on my side and today we defended with a five-three and he was always wider on my side.
"So a lot of times I had to run with him one-to-one and it's normal he's quicker than me and today he was good."
The goals took Salah to 28 in the Premier League this season, four ahead of nearest challenger Harry Kane, who is sideslined with and ankle injury.