Cannot login into Shopify using passkeys with the Bitwarden extension

 "result": "error",
 "reason": "user_submission_canceled_passkey",
 "credential_options": {
   "challenge": "YYYYYYYYYYY",
   "timeout": 120000,
   "extensions": {},
   "allowCredentials": [
     {
       "type": "public-key",
       "id": "ZZZZZZZZZZZZZZ"
     }
   ],
   "rpId": "accounts.shopify.com",
   "userVerification": "preferred"
 },
 "selected_method": "passkey",
 "other_info": {},
 "severity": null

Everyday Shopify asks me to verify my account but when I try to do so using my passkey it fails with the following error message: “We’ve encountered an error accessing your passkey. Try again or use a different method.” When I hit the “Verify” button I can see a POST request being made to https://accounts.shopify.com/user-verification/passkey?native_app=false&os_name=other&token=XXXXXXXXXX and it gets a 200 response with the following JSON: ``` { "result": "error", "reason": "user_submission_canceled_passkey", "credential_options": { "challenge": "YYYYYYYYYYY", "timeout": 120000, "extensions": {}, "allowCredentials": [ { "type": "public-key", "id": "ZZZZZZZZZZZZZZ" } ], "rpId": "accounts.shopify.com", "userVerification": "preferred" }, "selected_method": "passkey", "other_info": {}, "severity": null } ``` (I’ve redacted some information from the request URL and the response body) The passkey popup from Bitwarden never opens. I then use 2FA with my authenticator app and am able to login. I’m using Firefox 153.0.1 and the Bitwarden extension 2026.7.0. This used to work fine for me some time ago and I can still use passkeys using Chrome + Bitwarden on the same computer. I've contacted Bitwarden's support and they tell me the problem resides either with Firefox or with Shopify. I've also posted this issue in Shopify's community forums and people tell me it looks like it's Firefox who's cancelling Shopify's POST request given the "user_submission_canceled_passkey" error code. Shopify's community forums post: https://community.shopify.com/t/cannot-login-using-passkeys-on-firefox-using-bitwarden/659008