Is there an addon that allows you to view, edit, localStorage
information?
If there is and it works as an extension of Firebug I will be extremely happy.
Something like Google Chrome's local storage
similar to Firecookie but for the localStorage
Is there something like it?
FireStorage Plus! A great new FireFox Addon which is officially recognized by Firebug is available from the Mozilla gallery: http://addons.mozilla.org/en-US/firefox/addon/firestorage-plus/
This plugin extends Firebug to give you the functionality you need. As with Firebug itself, FireStorage Plus! is currently under heavy development so new features come out every couple of days...
It is stable and ready for use...