Hi,
As of today, Trend Micro has not announced a confirmed release date for a Firefox version of the ID Protection add‑on. Browser extension availability depends on several technical and platform‑specific factors, and Trend Micro typically shares updates once they are ready for official release.
In the meantime, you can use Google Chrome or Microsoft Edge, where the ID Protection extension is fully supported or continue using ID Protection via the Trend Micro desktop/mobile app, where monitoring and alerts remain active regardless of browser.
For your reference, here's the link on how to install Trend Micro ID Protection:
How to Install Trend Micro ID Protection | Trend Micro Help Center
