IPvFoo

Display the server IP address, with a realtime summary of IPv4, IPv6, and HTTPS information across all page elements.
What is IPvFoo?
IPvFoo is a Firefox add-on that displays server IP addresses and provides a real-time summary of IPv4, IPv6, and HTTPS information across all page elements. It raises awareness of the global IPv4 to IPv6 transition, respects privacy by keeping data in RAM, and is maintained without ads or server costs.
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Add-on stats

Users: 6,225 ▲ 31
Rating: 4.76 (37)
Version: 2.18 (Last updated: 2023-12-11)
Creation date: 2017-08-26
Weekly download count: 146
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 3
Permissions:
  • contextMenus
  • storage
  • webNavigation
  • webRequest
Host permissions:
  • <all_urls>
Size: 47.48K

Ranking

# 1025 ▼ 3
Other rankings
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Other platforms

IPvFoo (v2.18)
4.84 (188) 100,000
Not available on Edge
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Add-on summary

Analyze keywords

I made this extension to raise everyday awareness of the global IPv4 to IPv6 transition. To respect your privacy, it keeps data in RAM and treats the network as read-only. I can maintain this without ads because there are no server costs.

If you only see a blue "?" icon, you may need to click it, then click the big "grant permission" button and reload the page. This should happen automatically in Firefox ≥127.

IPvFoo's action icon shows a large red 4 or green 6 to indicate whether the outer page was fetched using IPv4 or IPv6. If the page connects to other domains, a smaller 4 or 6 appears alongside.

When you click the icon, a table appears with a row for each domain:

  • A padlock icon for http://, https://, or a mix of both.

  • The IPv4 or IPv6 address. If connections span more than one address, the most recent one wins. The address is highlighted in yellow while connections are open.

  • "⭮" for cached requests. The IP address may be stale if no connection was made.

  • "S" for WebSocket handshakes. The connection may still be active even if the address is not highlighted.

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User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Recommended extension with open-source code which can be trusted after review
  • Simple and reliable
  • Helpful for viewing if websites give priority to IPV6
  • Great for information
Cons
  • Shows IP of local proxy-server instead of the actual IP
  • Access denied on addons.mozilla.org
  • Does not work on heavily restricted systems with a whitelisting firewall
Most mentioned
  • Easy to use
  • Reliability issues in heavily restricted systems
  • Useful for checking prioritization of IPV6 on websites
Recent reviews
by Firefox user 17087931, 2024-11-07
by igorlogius, 2024-07-14
View all user reviews

Add-on safety

Risk impact

IPvFoo requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

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

Upgrade to see risk analysis details