Upgrade StorageZotero Connector will not install in Mac Firefox 77.0.1
Refreshed Firefox, Zotero Connector will download but will not install in browser bar. Please advise.
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There's no such thing as downloading a Firefox extension in Firefox — if you click an XPI, it just asks you whether you want to install it.
https://www.zotero.org/support/kb/no_toolbar_button