Emily was born in March and Foster and Griffin adopted her in April. She is the couple's only child.
"Our lives are forever changed, our hearts are exploding," the pair said at the time of the announcement.
On Wednesday, Foster celebrated her daughter turning nine months with a pic of Emily standing up in her room. The actress rarely shares photos showing her daughter's face, but every so often shares sweet snaps of the two of them together.
During a September appearance on Harry Connick Jr.'s show, Harry, Foster expressed how thrilled she and her husband were about their bundle of joy.
"My husband and I adopted her she was born in March. She’s amazing. It’s changed our life forever,” she shared. "Neither one of us really had any experiences [with kids], this is like the first grandchild on both of our sides so she is like the golden child. So we are learning as we are going but we have a lot of help and amazing friends but it's a massive learning curve but she teaches you a lot."