I follow the instructions on
and have running my own sync server.
After that I wanted to setup my FF 17.0.1 on gentoo to sync to MY Server but I always get 'Invalid URL'.
I started the tcpdump on the listening port and haven't seen any request on the server.
I have used the following user firstname.lastname@example.org and the sync setup-tool told me that this user-id is already used, due to this fact I assume that ff-sync does not ask MY Server.
Please can you help me to solve this issue. Thanks
Did you try to enable sync logging and check that log (about:sync-log) for errors?
There is no sync-log due to the fact that ff does not connect to the server.
I have make a tcpdump on the server on the listening port of the sync server.
Apparently Firefox's internal network layer doesn't like port 6000. Try another port, and I'll file a bug for that.
(Bug 826086 - Handle errors in asyncOpen)
(please do not comment in bug reports: https://bugzilla.mozilla.org/page.cgi?id=etiquette