Dreditor is a browser extension that provides handy buttons for working with issues on drupal.org in a consistent way. The Safari extension is no longer being distributed, but you can build it yourself and install it as a custom extension. It does not require a developer certificate.
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Does not work on Safari 13
Safari Extension Builder does not work starting with Safari 13. Dreditor needs to be converted to a Safari app extension to work on Safari 13.