Stop Safari 12.1 from auto-submitting forms Since the recent macOS 10.14.4 update which includes Safari 12.1 (14607.1.40.1.4), last started to automatically submit web forms with login &amp; password fields once a value for password or login is selected from auto-fill options.
This seems to be related to the new 10.14.4 feature where Touch ID got an option to confirm auto-fill in Safari. However I have it switched off but Safari still does this crap.
I'm curious if anyone else have the same problem and how to solve it.

UPD Starting Safari 13.0 (14608.1.49) auto-submitting is disabled!
I have this issue too, and I've just spent a long time with an Apple Support chat agent.

This is a "feature" introduced in Safari 12.1.

What's new in the updates for macOS Mojave


  Streamlines website login when filling credentials with Password AutoFill.


There is currently no way to turn this off. This is the solution the agent proposed. Submit a feedback to Apple:

https://www.apple.com/feedback/


  ...submit your feedback on the feature and your experience so far.


Maybe if we kick up enough of a fuss? It is a pain, and it also screws with captchas quite impressively...