DNSQueries Toolbar is a Firefox extension consisting in a toolbar that helps sysadmins in their all-day-long work. This toolbar is very useful and has a complete integration with the features published at DNSQueries.com. The toolbar will give you instant access to:
* Domain Health Check
* Find IP Neighbors
* DNS Query
* Traceroute
* Ping
* DNS Traversal
* IP geolocation
* SMTP tester
* Reverse DNS Lookup
* Service banner monitor
* and many more....