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 Auto Address Cleaner by Ma9++
Rated 5 out of 5 stars
Very useful.
Now, I don't need to worry about offending the recipients by using wrong (possibly mistyped in the address book) names in the To/Cc fields.
To create your own collections, you must have a Mozilla Add-ons account.