Carstens Referral Easily add a referral tag on an Amazon URL with this add-on for Mozilla Firefox
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Carstens Referral Tags

Amazon tag

Carstens Referral Description

Carstens Referral is a Firefox extension that adds referral tag on Amazon links. Carstens Referral is an open source add-on designed to work with Mozilla Firefox 16.0 and later. This add-on doesn't require you to restart the web browser. Product's homepage

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