Prune
Manage browser tabs with Prune, an extension listed for Chrome, Firefox, and Safari.
About Prune
Prune is a small open-source browser extension, built with Plasmo, for managing tabs. It can prevent duplicate tabs by focusing an existing tab, remove tabs that have not been viewed for a set number of days, move aging tabs into a collapsed tab group after a set number of days, limit visible tabs by grouping or removing least recently used tabs, and bookmark tabs before removing them. It is listed for Chrome, Firefox, Safari, Edge, and Opera, but some features may not be available due to varying support of extension APIs across browsers. Opera and Safari extensions are not automatically published and require manual webstore submission. The project is licensed under GPL-3.0.
Key features
- Focuses an already-open tab instead of opening a duplicate.
- Removes tabs not viewed for more than a configurable number of days.
- Moves aging tabs into a collapsed tab group after a set number of days.
- Limits visible tabs by grouping or removing least recently used tabs.
- Bookmarks tabs before removing them, keeping them around a bit longer.
- Available for Chrome, Firefox, Safari, Edge, and Opera, with API-dependent support.
Best for: People who keep many browser tabs open and want automated help removing, grouping, or limiting them.
Good for
- Open source under GPL-3.0 with a public repository.
- Available for Chrome, Firefox, Safari, Edge, and Opera.
- Configurable rules for duplicate tabs, old tabs, stale tabs, and visible tab limits.
Watch out for
- Some features may not be available due to varying extension API support across browsers.
- Opera and Safari extensions are not automatically published and require manual webstore submission.
Prune at a glance
- Website
- github.com/tbrockman/prune
- Category
- Software & Utilities › Browser Extensions
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Browser Extensions
Prune alternatives
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Simple Tab Groups lets Firefox users create, modify, and quickly switch between tab groups.
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Session Buddy helps manage browser tabs and bookmarks, with options to save open tabs and restore saved browsing sessions later.
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Prune FAQ
Which browsers does Prune support?
It is listed for Chrome, Firefox, Safari, Edge, and Opera, but some features may not be available due to varying extension API support.
What happens to tabs Prune removes?
Prune can bookmark any tabs it would have closed before removing them, keeping them around a bit longer.
Is Prune open source?
Yes, the repository is public and uses the GPL-3.0 license.
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