They weren't happy about the end result of the game against Tottenham.
I probably don't need to tell you that Liverpool supporters were left fuming after their 2-2 draw with their North London opponents yesterday.
Spurs scored a last minute winner, after they were awarded a controversial late penalty when Erik Lamela was kicked by Virgil Van Dijk.
Referee Jon Moss and his linesmen were booed as they left the Anfield pitch and there were even conspiracies that
the whole thing was an #InsideJob.
However, that wasn't the first controversial penalty that Tottenham were awarded in the match.
Their first came in the 87th minute and although Harry Kane missed the opportunity, many Liverpool claimed he should have never been awarded the chance in the first place as he had dived.
And, after Mark Lawrenson and Jermaine Jenas failed to discuss the centre forward's perceived simulation on Match of the Day 2, a lot of Scousers were making the same point on social media.
https://twitter.com/lfc_dagger/status/960305585752346625
https://twitter.com/anjrai_/status/960284475971293184
https://twitter.com/MainManMoSalah/status/960286299382050816
https://twitter.com/Corballyred/status/960286770167500801
https://twitter.com/IngoMadawow/status/960401967918059520
https://twitter.com/ballymikd/status/960294314927710210