# Is Proton's VPN extension fingerprintable?

**URL:** https://discuss.privacyguides.net/t/is-protons-vpn-extension-fingerprintable/34710
**Category:** Questions
**Created:** 2026-01-15T18:17:08Z
**Posts:** 3

## Post 1 by @Bankable835 — 2026-01-15T18:17:09Z

Hey, so I’ve learned that not all extensions are fingerprintable and I was wondering if Proton VPN extension is fingerprintable or not?

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## Post 2 by @anon57862721 — 2026-01-16T07:16:37Z

Why is this a concern if it is? I’m not sure if it is actually but I’m curious anyway.

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## Post 3 by @Average_Joe — 2026-01-18T14:39:50Z

We made some good progress here:

> [@Serious Problem: How reliable are VPN extensions like MullVad VPN for Firefox?](https://discuss.privacyguides.net/t/serious-problem-how-reliable-are-vpn-extensions-like-mullvad-vpn-for-firefox/22341/45):
>
> I appreciate your replies! I just assumed Vivaldi’s built-in Proton VPN would be the most integrated because it seems like Vivaldi and Proton have a strong partnership together? Compared to the Chrome/Firefox extensions that appear to be more generic and don’t receive as much support from Proton? I’m looking at your link now: [Browser extension limitations | Proton VPN](https://protonvpn.com/support/browser-extension-limitations) I just hope I can find a VPN that exclusively works in a browser because this has been a severe limitation on what I can and…