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Zotero Connector and Safari 13
Update, Nov. 28, 2019: A beta version of the Zotero Connector for Safari 13 is now available.
The Zotero Connector for Safari is currently unavailable for download, and existing installations will stop working if you upgrade to Safari 13 and/or macOS Catalina. Existing installations will continue to work in Safari 12.
We're currently working on a new version of the Zotero Connector to support Safari users going forward, and we hope to have it available in fall 2019. Follow @zotero on Twitter for updates.
In Safari 13, Apple is discontinuing support for the original type of Safari extension, which affects the Zotero Connector and many other extensions.
These Safari extensions, which work similarly to extensions for Chrome and Firefox, are being phased out in favor of Safari App Extensions, a much more limited type of extension that must be distributed as part of a Mac app. Legacy Safari extensions will no longer work in Safari 13.
We're working on a Safari App Extension version of the Zotero Connector. Unfortunately, despite their limited functionality, Safari App Extensions require significant development time that isn't required for browsers used by many more users, so we've had to balance it with other development demands.
For the best Zotero experience, you may wish to use the Zotero Connector for Chrome or Firefox instead. Chrome and Firefox provide powerful extension frameworks that allow us to offer advanced functionality such as automatic proxy detection and automatic RIS/BibTeX import, features that weren't possible in Safari even before Apple further restricted what Safari extensions can do.
Note that Zotero is, to our knowledge, the only tool of its kind that has offered a dedicated extension for Safari instead of a much more limited bookmarklet. While Zotero offers a bookmarklet as well, the “Intelligent Tracking Prevention” in the latest versions of Safari can prevent the bookmarklet from working properly as it does in other browsers, so the bookmarklet may not serve as a suitable alternative at this time.
See this forum thread for further discussion of this issue.