1832351 - Confusing behavior when logging in Zoom and other apps and Firefox is set as default browser

Status: RESOLVED FIXED

(Fenix :: App Links, defect)

Description

[Marco Castelluccio [:marco]]

Steps to reproduce

1. Open Zoom (or other apps that use custom tabs to perform login)
2. Try to login

Expected behavior

Following the login flow, at the end of the process Zoom should be automatically opened.

Actual behavior

Following the login flow, at the end of the process Firefox asks "Do you want to open this link in another app?". This is extremely confusing as the user didn't click on any link. Clicking "Cancel" will break the login. Clicking "OK" will open Zoom and complete the login.

Device information

• Firefox version: Firefox 111+.
• Android OS version: 12.

Any additional information?

This was working correctly until Firefox 110 and broke in Firefox 111.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1810705

:royang, since you are the author of the regressor, bug 1810705, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 2

[Roger Yang [:royang]]

Yes, this was a requirement change to prompt even in normal tabs or custom tabs when opening a URL/intent in an external application. I do see that for the sign in process that this could be confusing for the user. I will look into this to see if this can be simplified for the sign in process.

Comment 3

[BMO Github Automation]

Attachment: [mozilla-mobile/firefox-android] Bug 1832351 - Stop applink prompt if custom tab caller is the same as the external app (#2001)

Comment 4

[BMO Github Automation]

Authored by https://github.com/rocketsroger
https://github.com/mozilla-mobile/firefox-android/commit/1cd9428c65ae3d566f87fb1866b9f6cb06ca4155
[main] Bug 1832351 - Stop applink prompt if custom tab caller is the same as the external app

Comment 5

[Mira Lobontiu (Android QA)]

Verified as fixed on the latest Fenix Nightly 115.0a1 from 5/16 with the following devices:

• Google Pixel 6 (Android 13), and
• Samsung Galaxy Note 8 (Android 9).

Comment 6

[Ryan VanderMeulen [:RyanVM]]

Is this something we wanted to uplift to v114?

Comment 7

[Roger Yang [:royang]]

(In reply to Ryan VanderMeulen [:RyanVM] from comment #6)

Is this something we wanted to uplift to v114?

No, we need this fix to soak since there are so many different use cases for app links. I've try to run as many tests as I can but I think this is too risky to uplift. Thanks