ACM article saves as Document
This discussion was created from comments split from: Zotero Connector's translator for ACM seems broken.
This is an old discussion that has not been active in a long time. Before commenting here, you should strongly consider starting a new discussion instead. If you think the content of this discussion is still relevant, you can link to it from your new discussion.
Upgrade Storage
When saving this item using the Zotero Connector in Firefox, the item type is set to "Document" instead of "Journal Article" and the journal information is not saved. For the article that @azerrima shared everything appears to be saved correctly.
This is a complicated issue with Zotero's translator for certain pages on the new ACM site. I've opened an issue. Until this is fixed, if you run into this, to get the best metadata you can save the Document item as well as the BibTeX version (by generating a BibTeX citation on their site, copying it to the clipboard, and using File → "Import from Clipboard…" in Zotero), change the Document item to Journal Article, and then select both items, right-click, and merge the two.
Thanks for reporting.