Firefox does not offer a built-in feature to directly view the state of downloads on other devices connected to the same Mozilla Account. While Firefox does offer some synchronization features for bookmarks, history, passwords, and open tabs, the ability to monitor the download progress across devices is not part of its standard feature set. That is because the storage of other devices is not shared, So if you cant access it, Firefox does not show it. If you have any more doubts or questions, feel free to ask!