Inactive Tab Closer

Review and close inactive tabs. Manual by default. Optional reminder, auto-kill, auto-sort, and duplicate-tab detection.

Inactive Tab Closer helps you reclaim your tab strip without losing anything important. It quietly tracks how long each of your tabs has been sitting in the background. When a tab passes the inactivity threshold you set, it shows up in the popup so you can close the ones you don't need — one at a time, or in a batch, with a 5-second undo if you change your mind. Manual review is always on. Three optional modes layer on top, each an independent toggle: 🔔 REMINDER MODE A periodic notification telling you how many tabs are sitting idle. No closing happens — just a nudge. ⚡ AUTO-KILL MODE Automatically close tabs past the threshold. Always shows a 60-second undo notification before anything is removed. ↔ AUTO-SORT MODE Reorder tabs in each window so the most-recently-used are at one end. Pinned tabs and tabs in groups are never moved. Pick any combination — or leave them all off and just use the popup. — ALWAYS EXCLUDES — • Pinned tabs • Tabs playing audio • Domains in your whitelist (subdomains matched too) — RECENTLY CLOSED — The last 50 tabs you closed via the extension are saved with a one-click restore. Closed something by mistake? It's right there. — PRIVACY — • No accounts, no signups • No analytics, no telemetry • No <all_urls> permission — the extension never injects scripts or reads page content • Everything lives in chrome.storage.local on your device • Uninstalling deletes all stored data — PERMISSIONS EXPLAINED — • tabs — list, close, and read titles/URLs of your tabs • storage — save your settings and last-active timestamps • alarms — schedule periodic inactivity checks (Manifest V3 service workers can't keep their own timers) • notifications — show the reminder and 60-second undo prompts