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 Smart Quotes by Roadrunner
Rated 3 out of 5 stars
The converter works, the other icon appears to not do anything (Thunderbird v45.0). One would like to add these icons not in the composition toolbar or the menu bar, but rather in the bottom one (underneath the subject. Next I would prefer different icons, not a dark grey block.
To create your own collections, you must have a Mozilla Add-ons account.