SleepyTabs - Beautiful Tab Suspender by Sato

4.8 Stars out of 5

SleepyTabs - Beautiful Tab Suspender version history - 12 versions

Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 1.2.3
Released Aug 4, 2025 - 103.23 KB
Works with firefox 138.0 and later
Version 1.2.3

New Features
- Change Log Page
- Added a changelog page that shows on SleepyTabs updates.
- Can also access this in the footer next to the Help link, Release Notes.
Core Improvements
- SleepyTabs now re-discards sleeping tabs that were loaded but not yet awakened
- UUID now based on the tab's specifc URL.
- Moved theme settings and wake times into tabInfo config.
Bug Fixes
- Padding on tabs
- Float on Top in popup
- Popout width
Source code released under GNU Affero General Public License v3.0 only
You'll need Firefox to use this extension
Download Firefox and get the extension
Download file
Older versions
Version 1.2.1
Released Jul 29, 2025 - 96.38 KB
Works with firefox 138.0 and later
Version 1.2.1
- Bug Fixes:
- Fix 'Wake Up' on Sleeping page from restoring correct url on wrong tab after browser restart.
Version 1.2.0

New Features
- Reader Mode Support
- Added dedicated Reader Mode settings
- Control whether Reader Mode tabs can be put to sleep or woken up
- Maximum Active Tabs
- Set a limit for how many recently used tabs should remain active
- Based on tab's last access time
- Setting to 0 disables this feature
- Example: Setting to 2 will keep your 2 most recently used tabs awake
Enhanced Tab Settings
- Split controls for different tab types into separate sleep/wake options:
- Pinned tabs
- Grouped tabs
- Private browsing tabs
- Reader Mode tabs
UI Improvements
- Updated styles and overall user interface
- More intuitive settings organization
Translation System
- Switched to TOML format for translations (en.toml, fr.toml)
- For Contributors:
- To add a new language, copy en.toml, rename to your locale code, and translate
- TOML files automatically generate JSON on build
- Added translation verification tools:
  To check for missing or unused translations:
- bun run build
- bun run i18n:scan
- Bug Fixes:
- "Wake All Tabs" now correctly respects the current window setting when enabled
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.2.0
Released Jul 29, 2025 - 96.37 KB
Works with firefox 138.0 and later
Version 1.2.0

New Features
- Reader Mode Support
- Added dedicated Reader Mode settings
- Control whether Reader Mode tabs can be put to sleep or woken up
- Maximum Active Tabs
- Set a limit for how many recently used tabs should remain active
- Based on tab's last access time
- Setting to 0 disables this feature
- Example: Setting to 2 will keep your 2 most recently used tabs awake
Enhanced Tab Settings
- Split controls for different tab types into separate sleep/wake options:
- Pinned tabs
- Grouped tabs
- Private browsing tabs
- Reader Mode tabs
UI Improvements
- Updated styles and overall user interface
- More intuitive settings organization
Translation System
- Switched to TOML format for translations (en.toml, fr.toml)
- For Contributors:
- To add a new language, copy en.toml, rename to your locale code, and translate
- TOML files automatically generate JSON on build
- Added translation verification tools:
  To check for missing or unused translations:
- bun run build
- bun run i18n:scan
- Bug Fixes:
- "Wake All Tabs" now correctly respects the current window setting when enabled
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.1.5
Released Jul 24, 2025 - 93.22 KB
Works with firefox 138.0 and later
v1.1.5
• Fix Wake All Tabs

v1.1.4
• Add User Settings title
• Improved tab tracking with unique identifiers
• Fixed issues with tab information persistence
• Enhanced reliability when restoring tabs after browser restarts or crashes
• Better handling of tab information across browser sessions
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.1.4
Released Jul 23, 2025 - 93.27 KB
Works with firefox 138.0 and later
• Add User Settings title
• Improved tab tracking with unique identifiers
• Fixed issues with tab information persistence
• Enhanced reliability when restoring tabs after browser restarts or crashes
• Better handling of tab information across browser sessions
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.1.3
Released Jul 14, 2025 - 92.81 KB
Works with firefox 138.0 and later
Removed some extension permissions.
Better tab history preservation.
Better URL handling on sleep/wake.
Optimize the Import Settings page.
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.1.1
Released Jun 21, 2025 - 92.43 KB
Works with firefox 138.0 and later
Slept tabs will use their FavIcons instead of SleepyTabs icon
Title Prefix added to appearance section. Able to set custom emoji or text instead of default Sleeping: URL
Current prefix default is the ZZZ emoji.
Added SideBar. Default hotkey is Ctrl + Shift + 4, or use the button in the sidebar panel
Added context menu item, "Add to SleepyTabs Whitelist". Adds the exact URL to Whitelist
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.1.0
Released Jun 20, 2025 - 90.56 KB
Works with firefox 138.0 and later
Add localization. Current - EN, FR
Add 'Sleep tabs in current window' // SleepAllTabs will sleep only in current window. Popup only.
Possible better memory savings when sleeping
Optimize some code
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.0.7
Released Jun 16, 2025 - 86.4 KB
Works with firefox 138.0 and later
Fix for SleepAllTabs btn and whitelist
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.0.6
Released Jun 9, 2025 - 86.42 KB
Works with firefox 138.0 and later
Import/Export/Reset User Settings Buttons
Added Nord theme
Added option for settings to sync to profile, off by default
Added support fom Chrome browsers
Hotkeys:
- Put tabs to sleep with Ctrl+Shift+1
- Sleep all tabs with Ctrl+Shift+2
- Wake all tabs with Ctrl+Shift+3
Change these in your browsers extension settings page

Basic support for waking specific types of tabs(newtab, etc)
Fix tab tracking when multiple windows are open and using popout mode
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.0.5
Released Jun 4, 2025 - 63.21 KB
Works with firefox 138.0 and later
Update default whitelist
Update Readme
Slight design changes for popup
Fix issue with checkboxes
Add Advanced tab/Settings page to popup
New Advanced settings
Check Interval
Grace Period
Sleep ActiveTabs
Sleep AudibleTabs
Sleep PrivateTabs
Sleep LoadingTabs
Sleep AttentionTabs
Source code released under GNU Affero General Public License v3.0 only
Download file
Version 1.0.4
Released Jun 1, 2025 - 61.96 KB
Works with firefox 130.0 and later
Accessibility
Various bug fixes
Restyle popup to use tabs for General/Appearance
Some style style changes for sleeping page
Better popup light theme styles
Fix light/dark theme for popup based on system theme
Add gracePeriod, checkInterval to defaultConfig
Set default config settings on first load/install, rather than first 'use'
Source code released under GNU Affero General Public License v3.0 only
Download file

Latest version

Version 1.2.3

Older versions

Version 1.2.1

Version 1.2.0

Version 1.1.5

Version 1.1.4

Version 1.1.3

Version 1.1.1

Version 1.1.0

Version 1.0.7

Version 1.0.6

Version 1.0.5

Version 1.0.4