Holt McDougal Access the Holt McDougal website with this restartless add-on for Mozilla Firefox
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Holt McDougal Description

Holt McDougal is a simple Firefox extension that adds a button on the Add-On bar, allowing users to easily and quickly access the Holt McDougal website. Holt McDougal is an open source add-on designed to work with Mozilla Firefox 18.0 and later. This add-on does not require a browser restart. Product's homepage

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