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Limited use Rated 1 out of 5 stars
Not very useful. Show up only if there is error. Better if can show up and use individual function like whois.This review is for a previous version of the add-on (220.127.116.11-signed).
Well, since in the preference page you have the URL of all tools, you can bookmark them and use ubiquitous. This addon is designed specifically for error cases.