Report ID: 1569153001
Using Zotero 4 on Firefox 56.0 - Ubuntu 16.04. When I try to sync I get the following message: "A file sync error occurred. Please try syncing again. If you receive this message repeatedly, restart Firefox and/or your computer and try again. If you continue to receive the message, submit an error" I restarted Firefox and the computer but nothing changed.
https://www.zotero.org/support/installation#how_do_i_install_zotero