It’s not the first time the pair have been spotted together in recent weeks. Cox, 51, and McDaid, 39, spent Easter Sunday together back in March, shopping in Malibu, California with Cox’s daughter Coco.
At the time, Cox’s rep told ET, "They really care about each other and they're spending time together."
Since the pair split, Cox had been rumored to be datingFriends co-star Matthew Perry -- which sources told ET was "untrue" -- and was spotted "all over" actor Will Arnett during a dinner date in December.
Cox's pal and former co-star Jennifer Aniston recently opened up about experiencing "friendship, family, and heartbreak" with her Friends co-stars during the decade they spent filming the hit NBC sitcom. Find out what she had to say in the video below.