Cool add-ons from Windows

This site provides some cool add-ons to firefox. There is a ClearType Tuner which allows all applications to be moved to a font which you can feel and apply to all the applications including firefox. Using this you can have firefox font look same as IE7 or whatever browser font you like. This will give a uniform view of fonts across all applications. Another is a ALT+TAB replacement which again is better in case you belong to the category of people like me who keeps lots of application opened. I have not tried others, but will comment on it once i have installed those.