Cox shared the nostalgic images on Instagram a whole 16 years on from when they were taken.
One photo shows Cox alongside her fellow cast members, Aniston, Kudrow, David Schwimmer, Matthew Perry and Matt LeBlanc.
The other is of the finale script, titled “The Last One”, which was written by the beloved sitcom’s creators David Crane and Marta Kaufman.
Aniston – who broke instagram records when she joined in 2019 – responded with three crying face emojis.
Kudrow also responded, writing: “Awwww.”
Friends lasted for 10 seasons from 1994 to 2004.
Aniston’s first ever photo on Instagram saw her reunite with her cast members. It proved so popular with users that it forced the site to crash after generating over eight million likes in less than 24 hours.
Cox recently cameoed alongside David Beckham on an episode of Modern Family.