connect.leparisien.fr - Multiple arrows displayed for drop-down menus

[softvision-oana-arbuzov]

URL: http://connect.leparisien.fr/modifier-mon-compte

Browser / Version: Firefox Mobile Nightly 57.0a1 (2017-09-12)
Operating System: Huawei P10 (Android 7.0) - Resolution 1080 x 1920 pixels (~432 ppi pixel density)
Tested Another Browser: Yes

Problem type: Design is broken
Description: Multiple arrows displayed for drop-down menus

Prerequisites

1. Account created and signed in.

Steps to Reproduce

1. Navigate to: http://connect.leparisien.fr/modifier-mon-compte.
2. Scroll down the page and observe drop-down menus (e.g. “Date de naissance”/”Profession”).

Expected Behavior:
Single arrow is displayed.

Actual Behavior:
Multiple arrows are displayed.

Note:

1. Not reproducible on Firefox 55.0.2 Release (Mobile) and on Chrome (Mobile) 60.0.3112.116.
2. Screenshot attached.

Watchers:
@softvision-sergiulogigan
@softvision-oana-arbuzov

sv; country: fr

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[softvision-oana-arbuzov]

This issue might be a duplicate of #1368555

[karlcow]

It is. :)
Missing -moz-appearance: none;

[jwatt]

Can someone with a login test whether this now works in current Firefox, and whether it works in Nightly with the pref layout.css.webkit-appearance.enabled set to true?

[jwatt]

More specifically, I'd like to confirm that when run in Nightly the site is still broken when the pref layout.css.webkit-appearance.enabled set to false, but fixed when it's set to true.

[softvision-oana-arbuzov]

@jwatt , with the layout.css.webkit-appearance.enabled set to true, the issue seems to be fixed.
With the pref set to false it is still broken.

Tested with:
Browser / Version: Firefox Nightly 63.0a1 (2018-07-12)
Operating System: Huawei P10 (Android 7.0) - 1080 x 1920 pixels (~432 ppi pixel density), Samsung Galaxy S7 Edge (Android 7.0) - Resolution 1440 x 2560 pixels (~534 ppi pixel density)

[jwatt]

@softvision-oana-arbuzov Thanks! Just to confirm, is it still broken when you flip the pref to false? (I want to be sure whether the site fixed the issues or if our new code fixes it.)

[softvision-oana-arbuzov]

@jwatt, with the pref set to false it is still broken.

[jwatt]

@softvision-oana-arbuzov thanks!