Having gone 1-0 up but wasted a number of chances to potentially put the game beyond the Gunners in the first half, when Jurgen Klopp's side did score a second goal it was followed immediately by a insane five-minute spell in which they somehow went from 2-0 ahead to 3-2 down.
Salah's air-kick wasted another Liverpool opportunity and it was no surprise to hear Arsenal booed off at the interval.
According to the Daily Star, he said "he [Mignolet] misjudged it". I was not happy in that moment, but I really thought that was at least the minimum of what we deserved. That will be a fantastic situation.
Liverpool sit in fourth before their Boxing Day encounter with Swansea City at Anfield and having qualified for the last-16 stage of the Champions League this can be viewed as a positive campaign for them.
But a lot of Liverpool fans were not happy with one player's performance in the game on Friday.
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Alexis Sanchez looked his age and uninterested in proceedings - needing nearly four to five touches to get the ball under control while many a Gunner fan at the Emirates would have been wondering why the powerful and experienced Saed Kolasinac was benched for 20-year-old Ainsley Maitland-Niles.
"The good thing is that overall we did not give up. If we stay consistent and avoid mistakes, we will win much more football games than we lose or draw".
Liverpool now sit in fourth behind Chelsea, although there has been little to split between them and Arsenal this season, with both teams impressive from an attacking perspective but suspect defensively.
The visitors suffered an early blow when skipper Jordan Henderson limped off with a hamstring injury.
Xhaka then let fly and although his 25-metre shot swerved, it should have been meat and drink to Simon Mignolet who looked crestfallen as the ball nestled in the net. All the goals were our fault and that's something we need to learn from because it seems to be a theme for us this year. "Against good teams, at this level, you get punished and it happened [on Friday]".