Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseReview for Theme Font & Size Changer for ThunderBird by needs2see
Rated 3 out of 5 stars
Great addon except when it expires every 90 days and fix is not implemented right away. Tiny font is tough on my eyes and sanity!
Found a fix by another user that works and does not expire. check out wanhunglo dot com for their post about this addon and their fix for it. works for me on both mac and windows.
To create your own collections, you must have a Mozilla Add-ons account.