After your certificate has been imported in the Microsoft Edge, you can save a back-up copy of the certificate and create a password which is different with the default one and easier for you to remember.
1. Open Microsoft Edge, click on Settings and more icon in the upper right corner > click the menu icon > select Privacy, search and services > scroll down to Security > click Manage certificates
This password is required when you import the certificate into a different browser or when re-importing the certificate after a browser upgrade.
The back-up copy is now stored and can be copied and used on other devices. It also serves as a back-up in case of a computer or a browser change or upgrade when you may need to import the certificate.