Hi,
Kayece here, An Independent advisor and a user just like you. I will be happy to assist you today.
May I ask if this only happens on the messenger or does all external links from other apps open to MS Edge?
In the meantime, you can follow these steps:
*Open the Windows Settings by pressing the Win + I keys.
*Navigate to Apps > Default apps.
*Scroll down and click on Choose default apps by protocol.
*Locate MICROSOFT EDGE in the list
*Click on the program icon to the right of it.
*From the list, select your desired Browser to set it as the default for the protocol.
*Confirm the change if prompted.
*Restart your device.
*Check if it still opens links in MS edge.
I hope this helps. If you need more assistance, please let me know. I look forward to your response.
Stay Safe!