The Brazilian played 74 minutes at Villa Park as Jurgen Klopp’s men returned to winning ways in style and heaped further misery on the struggling Villains.
Daniel Sturridge put Liverpool ahead, before James Milner’s free-kick crept in to make it 2-0.
Goals from Emre Can, Divock Origi and Nathaniel Clyne made it 5-0, before Kolo Toure headed in a sixth to add further gloss to the scoreline.
Firmino was clearly thrilled to play a part in the victory and used his personal Instagram account to pay tribute to his team-mates after the win.
The Brazilian shared the picture above on the photo-sharing app and wrote: “well done boys”
The thumping win at Villa Park left Liverpool eighth in the Premier League table and nine points behind Manchester City in fourth heading into the final 12 games of the season.
Get 8/1 enhanced odds on Tottenham to win or 11/1 enhanced odds on Liverpool to win at White Hart Lane on Saturday afternoon. Click here to sign up now. T&Cs apply.
MORE: Latest Man Utd news
MORE: Latest Arsenal news
MORE: The latest football news