1991008 - Amazon Pay checkout flow doesn't work in Firefox for Android, if you've got Amazon Shopping App installed

Status: NEW

(Firefox for Android :: App Links, defect)

Description

[Daniel Holbert [:dholbert]]

note: I think this is basically a version of bug 1983915. [EDIT: this might actually be a bit different, see comment 1]

Prerequisites

1. Have the Amazon Shopping app installed.
2. Have your default browser set to whatever browser you're testing. (If you're testing Firefox, make it your default browser. If you're testing Chrome, make it your default browser.)

Steps to reproduce

1. Visit https://www.aloyoga.com/
2. Add some item to your cart and proceed to the checkout flow.
3. On the Checkout screen, tap the Amazon Pay button.
4. Type in an email address for an Amazon account, and tap "Continue"
5. If prompted to open an external app, tap "Continue" to accept the prompt.

Expected behavior

Should be able to proceed through a login form, far enough to get prompted for your Amazon password.

Actual behavior

I end up at an Amazon page that says "We're sorry. The web address you entered is not a functioning page on our site."

Device information

• Firefox version: 145.0a1
• Android device model: Pixel 6a
• Android OS version: 16

Any additional information?

Firefox gives "Actual behavior"
Chrome gives "Expected behavior", with one quirk - after I submit the sign-in page on step 4 (which prompts me for my email address), it looks like they invoke the external Amazon app and then open another tab with the same sign-in page again. After I tap through that sign-in page, then I get prompted for my password, as I would expect.

(I haven't actually proceeded past that point, since I don't want to share my email address or purchase anything from aloyoga.com; but I assume it works from that point on. For the purposes of this bug, I'm using "prompted for Amazon password" as the success condition.)

Comment 1

[Daniel Holbert [:dholbert]]

Note: when filing, I initially thought this was a version of bug 1983915, but now I'm not so sure; Chrome does seem to briefly switch apps after step 4, but you do end up back in the browser looking at another sign-in form. So I think in this case (unlike in bug 1983915) Chrome and Firefox both invoke the external app, and both end up back in the browser, but Chrome ends up at a valid sign-in page whereas Firefox does not.

Comment 2

[Daniel Holbert [:dholbert]]

Attachment: screencast showing the bug in Firefox Nightly 145 on Android

Comment 3

[Daniel Holbert [:dholbert]]

Attachment: screencast showing expected results in Chrome on Android

Comment 4

[Daniel Holbert [:dholbert]]

Attachment: screenshot of Amazon error page at the end of the Firefox Nightly screencast

Comment 5

[Mike Hommey [:glandium]]

I'm experiencing the same problem on e.g. https://shop.basefood.co.jp/ (in Japanese). I'll add this:

• I can also reproduce with Firefox release (143.0.2)
• When choosing to not open the link in the Amazon app, I do also get the error page, however after going back to the signin form and validating again, the popup about whether to open the link in the Amazon app doesn't appear, and I am prompted for a password (IOW, it works).

Comment 6

[BugBot [:suhaib / :marco]]

The severity field is not set for this bug.
:royang, could you have a look please?

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