Nice and simple, works with other buttons too. Rated 5 out of 5 stars

It works great, makes all the toolbar buttons bigger, even 3rd party ones, without taking up hardly any more space, and without changing the button images. And they still look great too - some even look better.......:^)

It even works with the following add-ons I use regularly:
Toolbar Buttons 1.0
Walnut for Thunderbird 2.0.12

Never had a problem with it. The ONLY thing I'd like is if it could be made to work on Firefox as well, that'd REALLY be great!......:^)

Thanks, and Merry Christmass!