CMC - Change Messenger Color

CMC - Change Messenger Color is a Chrome extension that lets you personalize Facebook Messenger conversations with any color, beyond the built-in 15 options. It's fast, simple to use, and colors you choose will be visible to friends across platforms without them needing to install anything. The extension also shows the total message count per conversation, supports color changes in group chats, and can copy a color from one chat to another. It works even if you don't have the Messenger app installed, making it flexible for web users.

Important note: Using CMC with a Messenger account across multiple devices isn't supported. If you sign in on a new device, you may lose data on the old device due to how Messenger handles accounts. This is a platform limitation, not a flaw in CMC. If you understand these constraints, you can start personalizing your chats today.