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Floorp vs Nook: catalog facts
Floorp	Nook
Free Free and open source under MPL-2.0. The project asks for sponsorship but nothing in the…	Free Free and open source, supported through Open Collective.
Windows, macOS, Linux	macOS
Vertical tabs, workspaces, split view and web panels are built in rather than bolted on with extensions Firefox underneath, so Gecko, containers and Firefox add-ons all still work	Sidebar and spaces for organising tabs Runs both Chrome and Safari extensions
A small team rebasing on Firefox, so security updates arrive after Mozilla's, not with them Less-travelled code than Firefox itself, which means interface bugs the main browser does not have	macOS only Young project, recently reached version 1.0
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License not stated
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.