Sleipnir vs Floorp: catalog facts
 Sleipnir |  Floorp |
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Free Free to download and use. The software is closed source. |
Free Free and open source under MPL-2.0. The project asks for sponsorship but nothing in the… |
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Windows, macOS |
Windows, macOS, Linux |
- Right-button mouse gestures cover most navigation, and the tab thumbnails stay usable even with a hundred tabs open.
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- 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
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- It is closed source, the documentation is largely Japanese, and the macOS build was paused over a Tahoe…
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- 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
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Downloadable app |
Downloadable app |
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Closed source |
Open source |
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License not stated |
License: MPL-2.0 |
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Not stated if an account is needed |
No account needed |
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Not stated if it works offline |
Needs internet |
Checked September 22, 2026 | Checked September 21, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
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