Goal
Have an easy option to login to a page, where I do not know the url out of my head. So klick on login123 leads to a new tab, loads the url, wait for page to load, autofill name and pw and click the submit button

The data should be mostly already there except the "submit" button. Similar behaviour has roboform.com (where I want to move away from).
First step perhaps without the submit.

Thanks
Regards
Ralf