With the installation of 4.1, all my user scripts are gone, and there is no way to add a new one from the backups I had because the new user script button doesn't work 90% of the time (you have to click and wait up to 30 seconds to get it to pop up, and most of the time, it never does) and when it does, I can't save anything. This is on 57.

Where is the quality checking before breaking our web experience? Moving on to another scripting engine. Good grief.