
For frequently-visited websites, enabled plug-ins will remain active. Users can choose to enable plug-ins for one session or every time they visit a specific website. In Safari 10, plug-ins are supported for websites where HTML5 is unavailable and may be enabled by users for each individual website. For websites that use proprietary formats, Safari supports the use of plug-ins such as Flash. To deliver faster load times, better battery life, and stronger security, Safari is optimized for HTML5, and will load this content whenever it is available. And if you’ve already developed an app, you can give users access to your app’s functionality and content, right in Safari. Xcode 12 and later supports the popular WebExtension API and includes a porting tool to make it easy to bring your extensions to Safari. Use Xcode to develop your extensions, with the option to get started using App Extension templates, and implement new capabilities using powerful native APIs and familiar web technologies.


With iOS and iPadOS 15, Safari Web Extensions are available on all Apple devices that support Safari. The Extensions category on the Mac App Store showcases Safari extensions, with editorial spotlights and top charts to help users discover and download great extensions from the developer community.
