The Tor team unveiled its Messenger app in 2015 to boost the security of existing chat clients, but those plans are coming to an end less than three years later. The developers are ending support for Tor Messenger due primarily to a lack of support. The developers behind Instantbird, the foundation of Messenger, have stopped working on the interface. There wasn't much overall progress on Messenger, for that matter. The app was still stuck in beta testing years after its debut, and the creators had to ignore bug reports and feature requests due to the limited resources.