About this tool
Firefox is not optional if you ship public web UI. It catches engine differences that Chromium-only testing will miss, and its devtools remain excellent for layout and CSS work.
Details
| Attribute | Value |
|---|---|
| Category | Browser |
| Website | www.mozilla.org/firefox/new |
| Added | 2026-08-12 |
| Last updated | 2026-08-12 |