Firefox Beta 50.0b1 for Android used to have an option to send tabs to another devices, but now it is gone. The stable version from Play Store does not have this option as well. There is an "Add to Firefox" option, but its only sub-option is to add to bookmarks. Everything else is synchronizing correctly, it is just this option that vanished. I really miss it. Did it happen to someone else? Maybe has it just changed the place in the menu? Or was it dropped?