Floorp

Floorp is a partially free and open-source (open-core) web browser based on Firefox and developed by Japanese group Ablaze.

Features
Users can display a QR code for the URL of the current web page.

Firefox Sync is also supported, and can share tabs across devices. It is cross-compatible with most other Firefox derivatives.

Support for progressive web apps (PWA's) is also included.

Floorp was based on Chromium in the past, but due to some technical issues, it has been based on Firefox since version 7.0.0.

UI and customization
Floorp is based on Mozilla Firefox, adding new features including vertical tabs, multi-functional sidebars, and support for custom CSS. It also includes the ability to display, hide, change the display position, optimize vertical tabs, transfer toolbars to the title bar, and hide the sidebar until the mouse hovers over it. In addition, it supports very detailed customization, such as switching or hiding the bookmark label, moving toolbars to unconventional locations, and having the tab bar and URL bar on the same line. The default theme is "Proton UI Design," but it can be changed to other themes, including operating system-specific themes.

Floorp also includes a mode called "split view," which allows users to view multiple tabs at once without opening a separate window.

Privacy
Floorp includes several privacy features, including fingerprinting protection, and the ability to disable features such as WebGL and WebRTC. It also disables telemetry from Mozilla.

Floorp also includes "share mode," which allows users to share their screens while hiding the bookmark bar and sidebar.

Reception
Japanese magazine Mr.PC praised the browser for being convenient and easy to use, with useful extensions included by default.