There is no in-built cookie export feature in Multilogin. However, it is still possible to export cookies using third-party extensions.
Solution for Stealthfox
- Install this extension while using Stealthfox or a regular Firefox browser
- Click on it and select "Export cookies for all domains"
- Save cookies as a .txt file
Solution for Mimic
- Install this extension while using Mimic or a regular Chrome browser
- Click on it and select "Cookie Editor"
- In the top menu click on the door icon with an arrow pointing to the right and export cookies as JSON