Display the server IP, with a realtime summary of IPv4, IPv6, DNS, WHOIS and HTTPS info. Fork of IPvFoo. Uses Google DNS.

What is IPvFooBar?
IPvFooBar is a Firefox add-on that displays the server IP address and provides a real-time summary of IPv4, IPv6, DNS, WHOIS, and HTTPS information across all page elements. It is a fork of IPvFoo and uses Google DNS. IPvFooBar is Free Software (Apache 2.0 license).
By: vrabel.it
Users: 262 ▲ 3
Rating: 4.83 (6)
Version: 1.0 (Last updated: 2022-01-13)
Creation date: 2022-01-12
Weekly download count: 10
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • contextMenus
  • storage
  • webNavigation
  • webRequest
  • <all_urls>
Size: 73.30K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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Fork of IPvFoo New features: WHOIS, reverse DNS, ARIN and RIPE hyperlinks, fixes. Uses Google DNS (dns.google).

IPvFooBar is Free Software (Apache 2.0 license).

Display the server IP address, with a realtime summary of IPv4, IPv6, and HTTPS information across all page elements. IPvFoo uses the webRequest API to extract protocol-related information as a webpage downloads, and summarizes it into a convenient table. Everything is captured and displayed privately, without creating any additional network traffic.

The first thing you'll see is an icon in the location bar. A large 4 or 6 shows whether the outer page was fetched using IPv4 or IPv6. If the page contains elements from other domains, then smaller numbers will appear alongside for those.

When you click the icon, a table pops up, containing a row of information for each domain:

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User reviews
My #1 favorite browser extension just got better! rDNS and RIPE lookup were the features I needed most...
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Risk impact

IPvFooBar is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install IPvFooBar if you trust the publisher.

Risk likelihood

IPvFooBar has earned a fairly good reputation and likely can be trusted.

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