Firefox plugin that lets you delete manage url autocomplet entries nicely

[mouser]

I'm looking for a firefox extension that will let me manage flexibly the url autocomplete list.

What i really want to do is to be able to maintain a list of urls which i want to always keep as autocomplete, and others which i want to remove when i restart firefox.

[Lashiec]

How about this?

[mouser]

It's a powerful addon, but it mostly adds features to the autocomplete system, which ironically made life more complicated for me.  So i guess im still looking for another extension that does less, but is more suited to culling stuff i dont want from the normal autocomplete system.