apache/airflow

[webui] DAG Backfills broken on Firefox

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#54429 opened on Aug 13, 2025

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affected_version:3.0affected_version:3.1area:UIgood first issuekind:bugpriority:medium

Description

Apache Airflow version

3.0.4

If "Other Airflow 2 version" selected, which one?

No response

What happened?

the DAG backfill ui doesn't work on firefox browser(desktop). on firefox(desktop) we only have date picker. no timer picker

What you think should happen instead?

make the ui work. if not, there should be kind of notification for supported browser or workaround for the unsupported bowsers

How to reproduce

after pick a date (from) if we don't setup time, the date will disappear

https://github.com/user-attachments/assets/af221778-dfc6-4c57-b9a8-eabf9390c22c

Operating System

macOS Sequoia 15.6

Versions of Apache Airflow Providers

No response

Deployment

Other Docker-based deployment

Deployment details

tested on

macOS aarch64

firefox 141.0.3 (❌) firefox developer 142.0b9 (❌) firefox nightly 143.0a1 (❌) safari (✅) but without time picker. might related to [#52362]

windows amd64

firefox 141.0.3 (❌)

note, on android. the function works correctly.

android

firefox nightly 143.0a1 (✅)

Anything else?

Should we have a new bug form for ui specific issue?

Are you willing to submit PR?

  • Yes I am willing to submit a PR!

Code of Conduct

Contributor guide

Tech stack
javascriptcsshtmlreact
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
basic HTML/CSSfamiliarity with browser developer tools
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Investigate the date/time picker component in the DAG backfill UI of Airflow. Check for browser specific CSS or JavaScript that may cause the time picker to not render on Firefox. Consider using a standardized input type like 'datetime local' or a polyfill. Relevant files are likely in 'airflow/www/static/js/' or similar. See issue comments for additional context.