Help improve Sync by reporting errors to Mozilla.

Sync error logs

1. Enter about:sync-log in the Firefox address bar.
2. The page that opens should look something like this:
3. Click the most recent error log. Save this information for inclusion in the report. Your error log should resemble this text:

1418768368623	Sync.Status	DEBUG	Status.service: success.status_ok => success.status_ok
1418768369296	Sync.Tracker.Clients	DEBUG	Saving changed IDs to clients
1418768369581	Sync.Tracker.Bookmarks	DEBUG	Saving changed IDs to bookmarks
1418768371196	Sync.Status	DEBUG	Status.service: success.status_ok => success.status_ok
1418768371261	Sync.Status	DEBUG	Status.service: success.status_ok => success.status_ok
1418769415642	Sync.Status	DEBUG	Status.service: success.status_ok => success.status_ok
1418781030950	Sync.Status	DEBUG	Status.service: success.status_ok => success.status_ok
1419283703026	Sync.Service	DEBUG	User-Agent: Firefox/34.0.5 FxSync/1.36.0.20141126041045.
1419283703161	Sync.Service	INFO	Starting sync at 2014-12-22 13:28:22
1419283704123	Sync.SyncScheduler	DEBUG	Clearing sync triggers and the global score.
1419283704124	Sync.Status	INFO	Resetting Status.
1419283704124	Sync.Status	DEBUG	Status.service: success.status_ok => success.status_ok
1419283776848	Sync.Status	DEBUG	Status.sync: success.sync => error.login.reason.network
1419283776848	Sync.Status	DEBUG	Status.service: success.status_ok => error.sync.failed
1419283776849	Sync.SyncScheduler	DEBUG	Next sync in 86400000 ms.

Filing a bug

Mozilla uses Bugzilla to report and fix issues. If you have, or wouldn't mind creating, a Bugzilla account, you can file the bug directly here.