Introduction

Keep your browser organized by automatically managing your open tabs

Welcome to Tab Closer

Tab Closer is a lightweight Chrome extension designed to help you maintain a clean and organized browsing experience by automatically limiting the number of open tabs in your browser.

What is Tab Closer?

Tab Closer is a Chrome extension that automatically closes older tabs when you exceed your configured tab limit. Instead of manually managing dozens of open tabs, Tab Closer does the work for you by keeping only your most recently opened tabs active.

Tab Closer uses a “first in, first out” (FIFO) approach - when you open a new tab that exceeds your limit, the oldest tabs are automatically closed.

Key Benefits

Improved Performance

Reduce browser memory usage by limiting open tabs, resulting in faster performance and smoother browsing.

Better Focus

Stay focused on what matters by preventing tab overload and reducing digital clutter.

Automatic Management

Set it once and forget it - Tab Closer works silently in the background to manage your tabs.

Customizable Limits

Choose your ideal tab limit (minimum 2 tabs) to match your browsing style and workflow.

How It Works

Tab Closer operates through a simple background service worker that monitors your browsing activity:

1. Enable the extension - Toggle the switch in the popup to activate automatic tab management
2. Set your limit - Configure how many tabs you want to keep open (minimum 2)
3. Browse normally - Tab Closer automatically closes the oldest tabs when you exceed your limit

The extension requires at least 2 tabs to be configured. This ensures you always have a minimum number of tabs available for your browsing needs.

Core Functionality

The extension’s background service worker monitors tab creation events:

chrome.tabs.onCreated.addListener(function (tab) {
    chrome.tabs.query({}, function (tabs) {
        // Check if automatic management is enabled
        chrome.storage.local.get('fs', function (result) {
            fs = result.fs;
            if (fs) {
                // Get configured tab limit
                chrome.storage.local.get('tabsallow', function (result) {
                    cantidadTabs = result.tabsallow;
                    if (cantidadTabs >= 2) {
                        if (tabs.length > cantidadTabs) {
                            // Close oldest tabs
                            for (let i = 0; i < tabs.length - cantidadTabs; i++) {
                                chrome.tabs.remove(tabs[i].id, function () { });
                            }
                        }
                    }
                });
            }
        });
    });
});

Use Cases

For Power Users

• Maintain a lean browsing environment while researching or multitasking
• Prevent browser slowdown from having too many tabs open

For Productivity Enthusiasts

• Reduce distraction by limiting the number of concurrent tasks
• Force yourself to close or bookmark tabs before moving on

For Memory-Conscious Users

• Keep browser memory usage under control on systems with limited RAM
• Prevent browser crashes from excessive tab usage

Privacy & Permissions

Tab Closer requires minimal permissions to function:

tabs

Required to monitor tab creation events and close tabs when limits are exceeded.

storage

Used to store your preferences locally (enable/disable state and tab limit).

All settings are stored locally in your browser. Tab Closer does not collect, transmit, or store any browsing data externally.

Getting Started

Ready to take control of your tabs? Head over to the Installation Guide to get Tab Closer up and running in minutes.

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Tab Closer is built with Manifest V3, ensuring compatibility with modern Chrome security and performance standards.