You can use the free version of the Lastpass password manager to help speed up form fills for registration!
When you complete the form for the first time and before submitting:
Select “Save All Entered Data””
This will open a window so you can edit your entries if necessary. You can disable auto entry if wanted. Hit “Save”.
Next time you want to fill in the form it will complete automatically if “Disable Autofill” was not checked. If disabled you can right click in a form field and select “Lastpass” then “Autofill” to fill on demand.
Once filled you can edit entries by moving from page to page before submission.