Legacy Safari extensions will no longer be supported. Scroll down to "Safari Extensions". https://webkit.org/blog/8825/release-notes-for-safari-technology-prev

Legacy Safari extensions will no longer be supported. Scroll down to "Safari Extensions". https://webkit.org/blog/8825/release-notes-for-safari-technology-preview-80/ https://webkit.org/blog/8825/release-notes-for-safari-techno...