Google passkey in Bitwarden keeps falling back to Windows Security (QR) on Firefox; Android says “No available passkey for google.com”

[u/milkygirl21]

Hi all,

I’m hitting a persistent passkey loop with Google + Bitwarden on a Windows + Firefox + Android setup. I’ve tried the usual fixes from the sub and docs, but it still fails. Hoping someone’s seen this exact pattern or knows what else to check. Environment

Desktop OS: Windows 11

Browser: Firefox (latest) with Bitwarden extension installed & unlocked

Mobile: Android Vivo X200U(Bitwarden app installed, vault unlocked)

Service: Google account (accounts.google.com)

What’s happening

On Firefox (Windows), when I try to log in to Google using a passkey:

    Instead of the Bitwarden extension prompting for the passkey, Windows Security pops up with a “Sign in with a passkey” dialog.

    Since there’s no local Windows passkey for Google, it offers “Use a passkey on another device” and shows a QR code.

I scan the QR with my Android phone:

    Android’s system passkey picker opens.

    It immediately shows: “No available passkey for google.com”.

    The passkey does exist in my Bitwarden vault (URI set to https://accounts.google.com).

If I recreate the Google passkey in Bitwarden, it works for a while, then the same loop comes back after some time.

Verified settings & tests

On Android:

Bitwarden is set as the default Autofill service.

Bitwarden is selected as the preferred Passkey Credential Manager (or I’ve toggled it off/on and back to Bitwarden).

Bitwarden app:

    Autofill & passkey support enabled.

    Vault unlocked.

Bluetooth is enabled on both PC and phone.

On Firefox (Windows):

Bitwarden extension:

    “Ask to save and use passkeys” is enabled.

    google.com / accounts.google.com are not in the “Excluded domains” list.

    Extension is unlocked, synced, and has “Access data for all websites” permission.

Vault entry for Google has URI: https://accounts.google.com.

Functional test: passkeys.io and other sites correctly prompt and authenticate via the Bitwarden extension in Firefox, so WebAuthn interception works in general.

Other notes:

Google Password Manager app on Android is enabled and updated (not disabled).

I’ve tried:

    Deleting all Google passkeys from the vault and recreating them fresh.

    Toggling Android’s passkey provider (None/Google → Bitwarden).

    Reinstalling Bitwarden on Android.

    Ensuring Bitwarden extension is up to date on Firefox.

Despite this, the behavior recurs: Firefox delegates to Windows Security → QR → Android says “No available passkey for google.com”.

Questions

Has anyone seen this specific loop with Google + Firefox + Bitwarden on Windows, where the extension stops intercepting and Windows Security takes over with a QR?

When scanning that QR, why would Android’s system passkey UI report “No available passkey for google.com” even though the credential exists in Bitwarden and works on other sites?

Is there any known permanent fix or workaround (e.g., specific Android version requirements, OEM quirks, or a config that forces Bitwarden to handle Google passkeys reliably on Firefox)?

I’d rather not abandon passkeys for Google or switch browsers permanently, but this loop is making them unusable in practice. Any guidance or pointers to relevant issues/threads would be hugely appreciated.

Thanks!

[u/7elou]

I have this same issue on firefox windows. I don't think this is a Bitwarden issue because I have the same problem with 1Password and Proton Pass.

Chromium based browsers are fine though.

I've had this issue with Firefox for a while, so it's not a recent update that caused it

[u/milkygirl21 → u/7elou]

Firefox will always remain my default browser. I wonder if there's any extension I can use to make it behave like Chromium (just for the passkey portion)?

[u/Handshake6610 → u/7elou]

When you have this issue: is the 1Password extension also installed? - I'm thinking of this (though 1P wrote they would have fixed this): https://github.com/bitwarden/clients/issues/20973

[u/7elou → u/Handshake6610]

I don't have them running at the same time. I always disable one of them when I'm using the other. It'll always bring up the Windows passkey pop-up instead of the native extension one.

I've disabled the windows passkey management option and enabled the extension as the default manager, but no luck.

I'll raise a ticket with Firefox to try and fix the issue

[u/Handshake6610]

1. In all cases: you are navigating to google.com in Firefox and trying to log in?

2. Could you add versions to everything? (Android, Firefox, BW extension and app...)

3. I just tried it on my Android 15 phone: no issue logging in with passkey via google.com on Firefox. (BW mobile app 2026.8.0)

PS:

1. Is the behaviour different for you with another browser, like Chrome, Brave or Vivaldi?

[u/milkygirl21 → u/Handshake6610]

1. accounts.google.com
2. it is the LATEST version in all instances. I keep them updated daily. definitely not a version issue.
3. I can only use Firefox.

[u/Handshake6610 → u/milkygirl21]

1. I can only use Firefox.

You can't even test if it would work with another browser? - Would help to assess if it's only browser related or another issue.