An integrated threat protection solution designed to detect, investigate, and respond to cyber threats across Microsoft 365 services.
Hello Accordeoniste01, welcome to the Microsoft Community.
I understand that you want to enable the web protection feature in Microsoft Defender.
Unfortunately, I have to inform you that the version of Microsoft Defender on the Android operating system does not support this feature.
It's important to note that Microsoft Defender is designed to provide security across devices and different platforms. Its advantage lies in the ability to view the status of all associated devices in one place, rather than just focusing on a single device.
Due to the unique nature of the Android platform, different applications have varying permissions, and different manufacturers customize their systems to different extents. As a result, Microsoft Defender cannot provide security at the system level in the same way it does on a unified Windows platform.
As a Community support, I can only explain this situation. However, you can submit your suggestion through the feedback center, which will allow the development team to see your thoughts: Send feedback to Microsoft with the Feedback Hub app - Microsoft Support
Thank you for your understanding and support!
Best RegardsEliac | Microsoft Community Support Specialist