To make extensions for iOS Safari, you need to follow a structured approach as outlined in the available resources.

1. **Create a Containing Native Application**: You must build an iOS app that serves as a container for your Safari extension. Unlike Chrome, you cannot upload a Safari extension independently; it requires a full app that goes through the App Store review process [5].

2. **Set Up Your Project**: In Xcode, you can create a new project using the Safari Extension App template or add a Safari Extension target to an existing project. This setup will include essential files such as `SafariWebExtensionHandler.swift`, which connects your native app to the extension's JavaScript code [5].

3. **Manage Resources**: Place your extension's source code in the Resources/ folder in Xcode. For effective file management, prefer using folder references over groups to ensure that new files added to your directory automatically reflect in Xcode [5].

4. **Develop and Test Your Extension**: Implement your extension’s functionality in JavaScript. Use the `NSExtensionRequestHandling` protocol to handle messages between your native app and JavaScript code. You will need to ensure appropriate permissions are granted in your extension's manifest [6].

5. **Memory Management**: Be aware of iOS's strict memory limits; as of iOS 15.0, the memory limit for a Safari Extension is 6 MB, which is mainly for Swift code in your extension [5].

6. **Debugging Tools**: To debug your extension's JavaScript, you can enable the Develop menu in Safari to access the web inspector, which helps inspect and debug the JavaScript running in your extension [5].

7. **Preparation for Production**: Before submitting your extension, make sure to build for production to optimize code size and performance. This involves running scripts to build your extension correctly when archiving your app [5].

By following these guidelines, you can successfully create and manage a Safari extension for iOS.

Building a Safari app extension

How to make extensions for iOS safari?

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