SleepyTabs - Browser Tab Suspender & Manager SleepyTabs is a browser extension that helps you manage browser tabs by automatically putting inactive tabs to sleep to save memory and improve browser performance. SleepyTabs uses the browser api tabs.discard. Same as the native "Unload" uses, but with more features. If you want you can hide the native unload in browser settings. ✨ Key Features

🔄 Automatic Tab Sleeping - Save memory after your chosen inactivity period
🎛️ Intuitive Controls - Sleep or wake tabs with simple clicks or keyboard shortcuts
🎨 Beautiful Sleeping Pages - Customize with 10+ themes and wallpapers
Caffeine List - Prevent specific sites from being put to sleep
⚙️ Granular Configuration - Fine-tune which tabs can sleep and when
🔒 Privacy Focused - Works entirely in your browser, no data sent externally
🌐 Sync Settings - Synchronize settings across multiple browsers
📦 Import/Export - Easily backup or transfer your settings

🛠️ Tab Management Basic Controls

Sleep Current Tab - Immediately put the current tab to sleep
Sleep All Tabs - Put all eligible tabs to sleep at once
Wake All Tabs - Restore all sleeping tabs with one click

Tab Type Handling

Pinned Tabs - Control sleep behavior for pinned tabs
Grouped Tabs - Manage sleep settings for tab groups
Private Tabs - Special handling for private/incognito windows
Reader Mode Tabs - Custom behavior for reader view tabs

Tab State Management

Active Tabs - Option to sleep even the currently active tab
Audible Tabs - Control whether playing audio prevents sleeping
Loading Tabs - Prevent sleeping of tabs that are still loading
Attention-Requesting Tabs - Handle tabs that want your attention

🎭 Appearance Customization Themes Choose from multiple themes: - Dark (Default) - Easy on the eyes in low light - Light - Clean and bright interface - Midnight - Deep blue dark theme - Sepia - Warm, paper-like appearance - Solarized - Precision colors for multiple applications - Nord - Arctic, north-bluish color palette - Forest - Nature-inspired green theme - Monokai - Popular code editor theme - Ayu Dark - Clean, modern dark theme - Amethyst - Purple-inspired theme You can also create your own themes in the theme creator! Wallpapers

Enable custom wallpapers for sleeping tabs
Set any image URL as wallpaper
Adjust brightness to your preference

Title Customization

Add emoji prefixes to sleeping tabs
Choose from preset emojis or set a custom prefix
Options include: 💤 (Sleeping), 😴 (Sleep Face), 🛌 (In Bed), 🌙 (Moon), and more

⚙️ Advanced Settings Performance

Check Interval - How often to check for inactive tabs (default: 10s)
Grace Period - Time since tab was last active before it is put to sleep
Batch Processing - Control how many tabs are processed at once
Sleep Delay - Time between processing individual tabs

Behavior

Discard Only - Just unload tabs without showing sleep page
Auto-Restore - Automatically wake tabs when clicked
Floating UI - Keep the popup interface always visible

📂 Data Management

Settings Sync - Keep your preferences in sync across browsers
Import/Export - Backup or transfer your configuration
Reset Options - Restore default settings when needed

⌨️ Keyboard Shortcuts

Sleep Current Tab: Ctrl+Shift+1
Sleep All Tabs: Ctrl+Shift+2
Wake All Tabs: Ctrl+Shift+3
Open SleepyTabs Sidebar: Ctrl+Shift+4
Wake Sleeping Tab: Enter (when focused on a sleeping tab)

Technical Details SleepyTabs is made for Firefox with support for Chrome. The extension works by:

Monitoring tab activity using browser events
Storing tab information in the browser's local storage
Replacing inactive tabs with lightweight placeholder pages
Restoring tabs to their original state when needed

Privacy SleepyTabs operates entirely within your browser. No data is sent to external servers, and all tab information is stored locally in your browser's storage. 📥 Installation 🤝 Contributing Contributions are welcome! Feel free to submit issues or merge requests to help improve SleepyTabs. 📄 License SleepyTabs is licensed under the GNU Affero General Public License v3.0 - see the LICENSE file for details.

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