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Preview of Houdini

Houdini by MarcoBalo

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

Experimental
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About this extension
Houdini brings tab panels straight into Firefox's own sidebar — no extra UI, no sidebar replacement.
Pick a panel! 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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Version
0.3
Size
38.62 KB
Last updated
10 hours ago (Jun 15, 2026)
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