I'm having the same issue as IanBroom - nothing in the extensions pane, after deleting the original app, installing the Beta, rebooting the computer...
@dstillman I updated the MacOS to Catalina (I had been on High Sierra), and the extension is working fine. So I think the issue must be with High Sierra.
There's nothing to try — the beta connector just won't currently work with High Sierra. We're not sure if we'll be able to support it, but we'll post here with further updates.
I went to save a paper to Zotero and Zotero suggested I restart to update. I said later, but then the icon on Safari looked a little odd, so I did restart. As I did the icon disappeared, then reappeared, then disappeared. There was no extension in Safari, preferences, extensions.
I had to deal with household stuff (Son, chickens, lunch) and when I got back to the computer I restarted both Zotero and Safari and this time the icon appeared but didn't work, but the extension had re-appeared, so I unchecked it, checked it again, and now it is working again, Phew! Have successfully downloaded another paper to Zotero!
I tried removing and reinstalling the beta. The zotero connector 5.0.60 is installed but when you open a webpage with references nothing happens it does not recognise the items or open the Zotero selector. It was working correctly on Safari 13.03 and does work on Chrome!
I just tried disabling and enabling the zotero connector and that seems to have made it work, even though it was enabled after installation of the beta. So working now thank you for your help.
We're looking into crashing of the extension after Zotero updates, which we can reproduce (though for us it just shows a crash notification and then continues working). We'll post when we have more info.
It is working now but to answer your question. The icon was just showing the large 'Z', whereas normally the icon is a folder which shows 'save to zotero' if you hover over it.
I was able to reproduce the extension not showing up in High Sierra. We'll investigate.
I had to deal with household stuff (Son, chickens, lunch) and when I got back to the computer I restarted both Zotero and Safari and this time the icon appeared but didn't work, but the extension had re-appeared, so I unchecked it, checked it again, and now it is working again, Phew! Have successfully downloaded another paper to Zotero!
Have you tried restarting your computer?