Affected versions

• 101.0a1 (20220411215938)
• 100.0b4
• 99.0.1
• 91.8.0esr

Affected platforms

• Windows 10x64
• Windows 10 ARM
• macOS 11

Preconditions

• saved address and card details inside about:preferences
• browser.search.region: US

Steps to reproduce

1. Open Firefox and go to https://www2.hm.com and select the United States.
2. Choose a random product and add it to the cart.
3. Proceed to checkout and fill in the shipping address.
4. Click on the phone number field.

Expected result

• Autofill dropdown is displayed.

Actual result

• The autofill dropdown is not displayed.

Regression range

• Reproducible with 93.0a1 (20210815094823) as well. I will search for one ASAP if there is one.

Notes

• Screen recording attached.

Hello! I searched for a regression range and it seems that I can reproduce the issue with Firefox 57.0a1 (2017-08-02) as well. On older builds like 55.0a1 (2017-06-02) the autofill does not work at all on this page so I think it's safe to assume that this issue is not a regression. Removing the floag. Thank you!

The same issue is reproducible on https://www2.hm.com/pl_pl/ when tested in Nightly 138.0a1 on macOS 13 where the Phone field does not display the autofill dropdown.