No 'Save to Zotero' button
I installed Zotero on my new computer. I added the Zotero Connector in Firefox and Edge. When I go to my library and select a book, there is no button for Zotero. I tried all the solutions mentioned in the Zotero troubleshooting page.
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dstillmanhttps://www.zotero.org/support/kb/no_toolbar_button