Floorp
FreeFirefox-based Japanese browser with vertical tabs, workspaces and deep interface customisation.
About Floorp
Floorp is a web browser built on Firefox and developed in Japan by Ablaze. It is available for Windows, macOS and Linux and aims to combine privacy with flexibility.
The browser adds features that Firefox does not offer by default, including vertical tabs, workspaces for separating tasks, a side panel for web pages and extensive interface customisation. It supports Firefox add-ons and keeps Firefox's privacy tools such as tracking protection. Its release numbering shows both the Floorp version and the underlying Firefox version.
Floorp suits Firefox users who want a more customisable layout without writing custom CSS. It is free to use and its code is released under the Mozilla Public License 2.0. As a small project built on top of Firefox, it relies on upstream security updates, which can arrive slightly after Mozilla's own. Documentation is available online, and support runs mainly through the project's docs and community channels rather than through a company help desk.
A good fit if you want vertical tabs in a Firefox-based browser. Keep it updated to receive security fixes from upstream Firefox.
Version history
1 release tracked- Windows: Bug fixes and performance improvements
Frequently asked
Is Floorp free?
Yes. It is free and open source.
Can I use Firefox add-ons?
Yes. Floorp supports Firefox add-ons.
Which platforms are supported?
Windows, macOS and Linux.
Where does the download link go?
Directly to floorp.app or the official app store for your platform. PlanetSofts never rehosts installers or adds wrappers, and these links were last verified Oct 6, 2026.