Clearing DNS cache in Firefox

My website was recently moved to a new server. I updated the name server records in the Domain Registry account. If I view the respective domain on any other computer or on any other browser apart from Firefox, they all point to the new server and the website is uploaded perfectly.

However Firefox does not seem to recognize the DNS changes. In my opinion Firefox must be creating a cache of the DNS nameserver information somewhere. I would like to know if there is a Firefox Addon or some other way to flush this DNS information?

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