Duplicate Tab Finder by pothonon

Find and close duplicate tabs in one click. Keeps the tab you're on, never closes pinned tabs, previews exactly what will close, and lets you undo. Optionally ignore #fragments and tracking params.

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About this extension

Finds duplicate tabs and closes them in one click — safely.
• Keeps the tab you're on and never closes pinned tabs
• Optional rules: treat page#a and page#b as the same, ignore tracking params (utm_*, fbclid, gclid)
• Hover a rule to preview exactly which tabs it would close
• Undo right after closing
• Click any tab in the list to jump to it
• Light and dark mode. No data collected, nothing runs in the background.

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Duplicate Tab Finder by pothonon

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