I've also deleted my Firefox account and opened a new one multiple times, which I would assume would delete my old data. But even after deleting my account my old data is still imported to Firefox after uninstalling and re-installing it.
I've also deleted my Firefox account and opened a new one multiple times, which I would assume would delete my old data. But even after deleting my account my old data is still imported to Firefox after uninstalling and re-installing it.