You want a second browser on a Windows 10 PC, one that runs on the Gecko engine and stays away from Chrome's codebase. Floorp, from the developer Ablaze, fits that job. It is a Firefox fork made in Japan and listed under lightweight web browsers.
Who a Firefox fork from Japan suits
Floorp suits people who already like Firefox and want a separate build with its own focus on privacy and flexibility. It is open source and cross-platform, so the same browser can follow you beyond Windows.
The current build is version 12.18.1@156.0.1, which points to Firefox 156.0.1 as its base.
What to expect in daily use
Floorp is described as a browser built for privacy and flexibility on a Firefox base.
The installer is 109.2 MB and needs Windows 10 at minimum.
Cost, licence and where it stands against others
Floorp is free and uses the Mozilla Public License Version 2.0. Alternatives include Google Chrome, Microsoft Edge, Mozilla Firefox, Brave, Opera GX Stable and Opera Stable.
What's new in 12.18.1@156.0.1
Version 12.18.1@156.0.1 was released on September 23, 2026.
Ablaze Floorp pros and cons
Pros
- Free, with a Mozilla Public License Version 2.0 licence
- Open source and built on Firefox's Gecko engine
- Runs on Windows 10 and later
- Cross-platform, according to its tags
- Download comes from github.com
Cons
- Interface cannot be previewed before installing
- Release notes for the current version are not published
- The 109.2 MB download is not small for a lightweight pick
Is Ablaze Floorp safe?
The file is not hosted by TopDown APK. The download goes to the official server at github.com, published under the developer Ablaze. The open-source licence lets others inspect the code, but no independent security review is available.
How to install Ablaze Floorp
- Press the download button to get the official file.
- Run the installer you saved and confirm the Windows security prompt if the publisher matches.
- Follow the setup steps, then start Ablaze Floorp from the Start menu.
