snap can be uninstalled. But then she needs Firefox from another source, there is no official .deb package any more. There is also the risk that some update or

snap can be uninstalled. But then she needs Firefox from another source, there is no official .deb package any more. There is also the risk that some update or package installation will pull in snap again. Doable for a technical user who only runs apt from command line and always reads the dependencies before answering yes. Not suitable for non-technical users.