Tab Manager

Suspend idle tabs, close duplicates, group by domain, and save snapshots.

# Tab Manager Tab Manager is a Chrome Manifest V3 extension for keeping tab-heavy sessions under control from a side panel. It combines focus tools, memory-saving actions, domain grouping, snapshots, and archive into one workflow. ## What It Does - `Focus Mode`: freezes every non-whitelist tab so you can keep only the domains that matter active. - `Suspend Idle Tabs`: discards tabs that have been idle longer than your configured threshold. - `Auto Group by Domain`: keeps same-domain tabs together and updates grouping for newly opened tabs. - `Group by Domain`: manually groups tabs in the current window. - `Ungroup Tabs`: removes all current tab groups. - `Close Duplicates`: closes tabs with the same normalized URL. - `Save Current Tabs`: stores the current session as a restorable snapshot. - `Archive Idle Tabs`: moves idle tabs out of the window into the archive list. - `Archive Restore`: restores archived tabs back into Chrome from the side panel. ## UI Overview ### Side Panel The extension uses Chrome's side panel instead of a popup. The panel includes: - `Live Stats`: current tab count and group count. - `Focus Mode`: one-click freeze action for non-whitelist tabs. - `Quick Actions`: suspend, group, ungroup, dedupe, and archive actions. - `Auto Group by Domain`: a toggle switch with visible `On` / `Off` state. - `Snapshots`: save, restore, and delete snapshot entries. - `Archive`: restore archived tab batches. ### Settings Page The settings page includes: - `Focus Mode`: enable focus mode during background scans. - `Idle Suspension`: set idle time and quick presets (`Light`, `Balanced`, `Aggressive`). - `Auto-group tabs by domain`: background grouping for new or updated tabs. - `Include pinned tabs`: allow pinned tabs to be included in group/suspend flows. - `Auto Archive`: automatically archive tabs after a longer idle threshold. - `Whitelist Domains`: domains that should stay active during focus, suspend, and archive flows. ## How To Use ### Open the Extension 1. Reload the extension from `chrome://extensions` after code changes. 2. Click the extension icon. 3. If Chrome does not open the side panel automatically, use Chrome's side panel UI or right-click the extension icon and choose the side panel option. ### Everyday Workflow 1. Add a few domains to `Whitelist Domains` in settings. 2. Turn on `Auto-group tabs by domain` if you want new tabs to join existing domain groups. 3. Use `Focus: Freeze Non-Whitelist` when you want an immediate focus pass. 4. Use `Suspend Idle Tabs` to reclaim memory without closing tabs. 5. Use `Save Current Tabs` before a context switch. 6. Use `Archive Idle Tabs` when you want a cleaner window, not just suspended tabs. ### Snapshots - Click `Save Current Tabs` to capture the current session. - Click `Restore` to reopen the saved tabs. - Click `Delete` to remove a snapshot from storage. ### Archive - Click `Archive Idle Tabs` to move qualifying idle tabs into archive storage. - Archived tabs are removed from the current window. - Click `Restore` in the archive list to reopen them. ## Behavior Notes - Focus mode and idle suspension use `chrome.tabs.discard`, so tabs stay in Chrome and reload when revisited. - Archive removes tabs from the window instead of discarding them. - Auto-group works per window and attempts to add new same-domain tabs into existing matching groups. - If a grouped tab navigates to a different domain, it is removed from the old group. - System pages such as `chrome://` are ignored. ## Permissions - `storage`: saves settings, snapshots, and archives. - `tabs`: reads and manages tab state. - `tabGroups`: creates and removes tab groups. - `alarms`: runs periodic background scans. - `sidePanel`: provides the side panel UI.