Well I use a 3rd party blacklist, which contains about 10 000 numbers. It's updated regularly, so I want to keep the Firewallplus database up-to-date. As I said after updating the file all the numbers show up correctly in the app, but it won't block the new numbers unless I reinstall the app. So I suspect there's a temp file somewhere.

A new import/export function for a newline separated list of numbers would be great though.