The URL Swap extension changes the root to another URL that you specify in the Preferences window.

https://addons.mozilla.org/en-US/firefox/addon/url-swap/?src=search

This is an old Firefox Addon project (2008). I open today the source. 22/09/2015

Be free to fork it and pull request to improve it.

Swap windows URL root to another (replace root URL) like :

www.google.com/search?&q=Autre+planète+Design+Studio+Paris&...

to:

www.google.fr/search?&q=Autre+planète+Design+Studio+Paris&...

###OR

localhost

to:

yourWebSite.com (your web pages)

...

###Howto :

Open Preferences URL Swap, to manage your URLs. Click on URL swap icons (Right Bottom Corner) to swap the current URL.

FF4 compatible NOW!

Swap between development and live version

Swap between different website versions

Swap between different languages like (/fr/ to /en/)

And More... ;)

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/