Hertfordshire Fire and Rescue Service received four emergency calls during the Fire Brigades Union strike between on Christmas Eve.
Fire crews took to picket lines between 7pm and midnight on Tuesday as part of their dispute with the Government over proposed changes to their pensions.
Firefighters in Hertfordshire are set to strike on New Year’s Eve from 6pm to 12.30am.
Richard Thake, cabinet member for community safety, said: "Despite fewer resources being available during the strike action all incidents were dealt with appropriately.
"We are extremely disappointed that further walkouts took place and we continue to hope for a speedy resolution to this ongoing dispute."
Roy Wilsher, chief fire officer and director of community protection, said: "Fortunately we had a quiet night in Hertfordshire. The contingency plans that were put in place have stood up well. We have been delighted by their consistent dedication and commitment.
"We would like to once again thank everyone who took extra care during the strike action and heeded the safety advice given prior to the walkout."
For further information and safety advice visit www.hertsdirect.org/firestrike
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