All titles disappeared
I've been using Zotero for Firefox for years without any problems. I now find that in the Zotero drop down box, the library structure is in place but there are no titles. I have checked online and my library is there. In Word, the Zotero integration still works normally. I have made a copy of the Zotero folder with the sqlite files. I have removed the Zotero add-in and reinstalled Zotero - no effect. I have manually re-synced - no effect. What next?
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Beyond that, can you provide a Report ID?
Will this problem reoccur when Firefox does its next automatic update?
(That said, Zotero 5 will only exist as a connector to Standalone on all browsers, including Firefox, and that should be much less likely to break including in beta releases of browsers).