I See Dead Tabs by SingeQuantique
I see tabs that are dead… (inspired by The Sixth Sense) Auto-sleep or close inactive tabs to keep Firefox fast and tidy. Flexible rules, pin protection, exceptions, no tracking. Open source, minimal fuss.
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About this extension
I See Dead Tabs auto-sleeps or closes inactive tabs to free memory and clear the clutter. Fast to set up, privacy-respecting, and 100% open source—so Firefox stays smooth without breaking your habits.
Why you’ll love it
- Faster, lighter Firefox during heavy multitasking
- Less tab overload → more focus
- Transparent by design: open source, predictable behavior
Install it, set your idle time, and let the extension keep your workspace clean—so you can stay in flow.
- Choose inactivity rules (duration + action: sleep/close)
- Respects pinned tabs and your critical sites (exceptions list)
- One-click pause when you don’t want automation
- Option to ignore tabs playing audio/video
- Clear notifications for what’s slept/closed
- No data leaves your browser — zero tracking
Why you’ll love it
- Faster, lighter Firefox during heavy multitasking
- Less tab overload → more focus
- Transparent by design: open source, predictable behavior
Install it, set your idle time, and let the extension keep your workspace clean—so you can stay in flow.
Rated 5 by 1 reviewer
Permissions and data
Required permissions:
- Display notifications to you
- Access browser tabs
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.1
- Size
- 72.2 KB
- Last updated
- 22 days ago (Oct 16, 2025)
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- License
- Custom License
- Version History
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