Close Duplicate Tabs is a lightweight browser extension that keeps your workspace clean by automatically detecting and closing duplicate tabs. Using smart URL normalization, it accurately identifies duplicates -even when URLs differ slightly – helping reduce clutter, improve performance, and save memory.

With a simple popup, you can view live tab statistics and close duplicates in one click, or enable an auto-close mode that works silently in the background. A customizable domain whitelist ensures important sites stay open, while intuitive settings let you tailor the extension to your workflow.

Built on Manifest V3 with a privacy-first approach, all processing happens locally – no data is collected or shared. Whether you’re juggling dozens of research tabs or just want a calmer browsing experience, Close Duplicate Tabs makes staying organized effortless.

Download from Microsoft Edge Addons: https://microsoftedge.microsoft.com/addons/detail/close-duplicate-tabs/kbjabkpigjoefhlpnooccdfogcieeonb