First of all, I do not mean you should use all these extensions, of course. This will slow down your FireFox immensely. Choose the one you like most and stick to it.

1. Flagfox – displays the country flag (based on an IP address) in the status bar for you to see the domain server location. Additional information (IP address and country) is displayed when you hover over the flag. The extension menu also provides quick access to more detailed Whois data.

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