2082290 - Firefox 155+ regression: Incorrect date and time input formatting in Hebrew (he-IL)

Status: UNCONFIRMED

(Mozilla Localizations :: he / Hebrew, defect)

Description

[shai bebe]

Attachment: צילום מסך 2026-10-15 094149.png

Steps to reproduce

1. Open Firefox 158.0 (64-bit) on Windows, using Hebrew (he-IL) locale settings.
2. Visit websites containing HTML date and time input fields, including the examples on MDN.
3. Click on a date input field and examine the displayed date format.
4. Click on a time input field and examine the ordering of the time components.
5. The issue occurs across multiple websites, not only Zoho.
6. Changing Firefox language and locale preferences did not resolve the issue.

Related Mozilla Support discussion:
https://support.mozilla.org/en-US/questions/1611843

A Mozilla Support contributor confirmed that the behavior changed between Firefox versions 152 and 155 and identified Bug 1804663 as a possible regressor.

Actual results

Firefox displays date input fields in an unexpected format, such as YYYY.MM.DD instead of DD/MM/YYYY.

Time input fields also exhibit inconsistent visual ordering of their components in the Hebrew right-to-left interface.

The problem occurs on multiple websites and affects the usability of date and time input fields.

This behavior appears to be a regression introduced between Firefox versions 152 and 155.

Expected results

Date and time input fields should follow the expected Hebrew (Israel, he-IL) regional conventions.

Dates should be displayed in day/month/year order (DD/MM/YYYY), and time fields should display hours and minutes in the correct order (HH:mm).

Both controls should render consistently and correctly in a right-to-left Hebrew interface.