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 (fixed) by KCNewsie
Rated 5 out of 5 stars
Please please update! I can't read this annoyingly tiny type that Thunderbird insists on using! ARGHGHGHGH!
To create your own collections, you must have a Mozilla Add-ons account.