OT: Advice/INput please

Hi

Sorry for the oT.

I currently use BASIC Authentication for a number of secure webfolders.
This brings up the popup username/password box in all browsers

I would like to have the usename and password box on the webpage rather than
pop box (like ou see on many sites)

I suspect this means using a different authentication method??

Can anyone advise what options are available to me and what i should be
looking at?

TIA