To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for Theme Font & Size Changer for ThunderBird by Firefox user 2520c1
Rated 1 out of 5 stars
stopped working again.. guess because of the idiotic date check the autor put in this addon.
To create your own collections, you must have a Mozilla Add-ons account.