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Preview of Houdini

Houdini by MarcoBalo

Houdini visually separate groups of tabs, making them disappear and reappear

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About this extension
Houdini

Houdini brings Opera GX tab workspaces straight into Firefox's own sidebar.
Pick a panel and every tab that doesn't belong disappears.

Houdini would approve 🎩
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Permissions and data

Required permissions:

  • Access recently closed tabs
  • Hide and show browser tabs
  • Access browser tabs

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
0.5.0
Size
913.49 kB
Last updated
2 days ago (17 Aug 2026)
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