[PM-41420] Privileged app warning pop-up does not give ability to trust custom-signed browsers

[TinfoilSubmarine]

Steps To Reproduce

1. Install custom-signed build of a browser that is on the trusted list.
2. Attempt passkey operation.
3. Get pop-up displaying "Passkey operation failed because browser signature does not match"

Expected Result

Pop-up should give option to manually trust the custom-signed browser application anyway.

Actual Result

There is no way to get this browser added to trusted list as I can only press "Okay" in the pop-up, and I can't find any options in the "Privileged apps" menu to add my own override.

Screenshots or Videos

No response

Additional Context

If this is considered too risky since users may not read/understand before pressing, there are several options:

1. Implement pop-up as mentioned above, but also add a cool-down (e.g. 10 seconds) before the trust button becomes available.
2. A menu to add/override the list manually could be added to the "Privileged Apps" menu in settings.

Build Version

2026.7.0 (21756)

What server are you connecting to?

N/A

Self-host Server Version

No response

Environment Details

No response

Issue Tracking Info

• I understand that work is tracked outside of Github. A PR will be linked to this issue should one be opened to address it, but Bitwarden doesn't use fields like "assigned", "milestone", or "project" to track progress.

[bitwarden-bot]

Thank you for your report! We've added this to our internal board for review.
ID: PM-41420

[pamperer562580892423]

1. Install custom-signed build of a browser that is on the trusted list.

Which one for example?

[TinfoilSubmarine]

org.mozilla.fennec_fdroid, signed by my own key

[Neonwarden]

Hi there,

This has been escalated for further investigation. If you have more information that can help us, please add it below.

Thanks!