Hi there Firefox Team! First, I like your app very much and been using it for a long time. Keep up the good work! Unfortunately there seems to be a bug for some time. Cleaning private data on "quit" doesn't work anymore. When selecting quit the usual message "Clearing private data..." shows up, but then nothing further happens and the app won't quit. I already tried clearing the app cache through the system settings, but obviously the problem was not fixed. I would appreciate if you have a look at it. Thank you already in advance. Sincerely, Tukom