This is a new version release note of Amazon Deal Button. (this version will be available to download soon)
View a complete user manual of this add-on.
Important: The version 1.4.20120210 is compatible up to Firefox 16.* ONLY, if you use Firefox 17.* or higher, please download Amazon Deal Button version 1.5.20121120, which can be found here.
This version is a maintenance version, major change was to make it compatible with Firefox version 17.0 and up.