Automatically close the oldest tabs when your browser gets cluttered with too many tabs. Say goodbye to a messy browser experience forever!
Now available for both Chrome and Safari!
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A browser extension to maintain a clean browser by auto-closing old browser tabs. Available for Chrome & Safari.
This project includes a Safari Web Extension. To build and install:
cd safari-tab-killer
xcrun safari-web-extension-converter . --macos-only --app-name "TabsKiller"Then open the generated Xcode project, select your development team, build and run (⌘R). The extension will be available in Safari → Preferences → Extensions.
Alternatively, open safari-tab-killer/TabsKiller.xcodeproj directly in Xcode, configure signing, and run.
Install from Chrome Web Store:
- Open
chrome://extensionsin Chrome - Enable Developer mode (top right)
- Click Load unpacked and select the
chrome-tab-killer/directory
- Automatically close the oldest tabs when the tab count exceeds a set limit
- Customize the maximum number of tabs
- Lock specific URL patterns — pinned tabs matching these rules stay open
I usually open many tabs. So I press Ctrl+W to close them a lot, one at a time. Repeat and repeat. I wanted to write an extension to solve my problem. Then I found "Tab Wrangler" which closes tabs when inactive for x minutes — I learned from it and built one that closes the oldest tabs when you exceed your limit. With URL locking for important tabs. It helps me a lot. Tabs never become too many. Hope you like it too.
— Zhiwei, 2016 ⸱ 2026 Safari edition