coach Anthony Foley said Munster were feeling "a lot of frustration" after allowing Glasgow Warriors come from behind to win their Pro12 clash 21-18 on Saturday.
Munster took an 18-9 lead at the interval courtesy of out-half JJ Hanrahan's early try, two penalties and conversion of Robin Copeland's 40th-minute touch down.
All of Glasgow's points in the first half came from the boot of Finn Russell, but after the break Leone Nakarawa and Jonny Gray crossed the whitewash to turn the match around.
The win moves the hosts above Munster and briefly saw them climb into first place in the table, but Ospreys' bonus-point victory over Ulster in the late game ensured they were top of the tree heading into the festive period.
Foley said his side had been in control but had allowed Glasgow a "sniff" of a comeback.
"We came out in the second half, and they came really hard at us, and we withstood that, we created some opportunities, we didn't take them to extend our lead," Foley said.
"They got a sniff of it with about 20 to go, and from there we were on our heels. Unfortunately for us, we didn't finish this one off.
"When you're away from home, as we've learned in recent times, when you create your opportunities you've got to take them. You've got to be ruthless, and we weren't."
Next up for Munster is the showdown with Leinster on St Stephen's Day and although raising the passion levels should not be a problem going into that game, Foley stressed that it was also important to learn the lessons of Scotstoun.
"It'll be about getting down again, understanding why we lost and where the opportunities are, making sure that we understand that and we can go into the Leinster game, and go in there and hopefully get a result at home."
Wales scrum-half Rhys Webb crossed twice as Ospreys went top with a bonus-point 31-20 victory over Ulster at the Liberty Stadium.
Ospreys completely dominated the game, scoring tries through wing Hanno Dirksen and Dan Biggar, who added an additional 11 points from the tee.
Ulster had late tries from replacement Rob Herring and Tommy Bowe, with Ian Humphreys providing 10 points with the boot.
Meanwhile, Northampton captain Dylan Hartley could miss at least the start of England's Six Nations campaign after he was sent off for elbowing an opponent in the face.
The controversial hooker's career has been scarred by repeated disciplinary episodes, including a 26-week ban for eye-gouging in 2007 and an 11-week suspension for verbally abusing referee Wayne Barnes during the 2013 Premiership final against Leicester.
His latest indiscretion happened after 17 minutes of a game that 14-man Northampton won 23-19.