If you want to contribute a profile, please start with including common.inc. If you know that you need to disable something from common.inc, use ignore <predicate> before including it (see some of the profiles in the repository for examples).
If a profile isn't working or it breaks for you, please attach the output for firejail --debug <program> to your issue (if it's very long, please upload it as a file and attach it to the issue!).