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Rated 5 out of 5 stars
Indispensable. If you're using Firefox in an organization that has standardized on NTLM authentication for shared web resources (SharePoint, wikis, etc...) this plugin is a lifesaver. Previously I used IE Tab as a workaround, and while that works the downside is you lose native Firefox functionality within the hosted IE instance - using CTRL + Tab to switch between tabs, for example. I still have IE Tab for those few sites that actually require IE, and now NTLMAuth for everything else.This review is for a previous version of the add-on (1.0.1).