The Tab Suspender Firefox

The Tab Suspender

Suspends inactive tabs after a set time by replacing them with a custom suspended page.

Features & Capabilities

The Tab Suspender automatically suspends inactive tabs after a configurable timeout to reclaim memory and CPU, helping your browser stay fast and your laptop battery longer. It replaces idle pages with a lightweight placeholder and marks suspended tabs with a visible indicator, so you always know which tabs are sleeping and can load them on demand.

Key features include: automatic suspension with a default 40-minute timeout, significant memory savings, native discard API integration for efficient memory handling, per-tab whitelists and protections for audio/video, unsaved forms, and pinned tabs, customizable emoji markers, pause/resume controls, and a seamless context-menu and keyboard-shortcut workflow. The extension also supports dark mode and a quick-load-on-click option for suspended pages.

User Growth & Download Statistics

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Faisal Bhuiyan
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/the-tab-suspender/
Email:
fa*****@gmail.com
Website:
https://github.com/faisalbhuiyan3038/The-Tab-Suspender-For-Firefox

Permission Change History

2025-04-27: Version 1.0 → 1.1
Add Permissions: contextMenus

User Reviews

Reliable and performance-boosting tab suspender with a clean UI and manual suspend option. It trims RAM by suspending inactive tabs and skips tabs with unsaved forms or media. Common drawbacks include distracting suspend notifications and the ZZZ indicator, a desire to exclude the active tab, lack of whitelist/export/sync features, and occasional compatibility issues or unexpected suspension of new tabs.
Pros
  • Reliable performance: works as advertised and is dependable.
  • Keeps browser snappy by suspending inactive tabs, reducing memory usage.
  • Clean, intuitive UI that is easier to use than alternatives.
  • Supports manual tab suspension for selective control.
  • Skips tabs with unsaved forms or media, avoiding unnecessary suspensions.
Cons
  • Notifications pop up each time a tab is suspended.
  • ZZZ icon/animation is distracting or obscures tab titles; lacks an option to disable.
  • Cannot exclude the active tab from suspension; may suspend tabs you still need open.
  • No built-in whitelist export or cross-device sync; difficult to share settings.
  • Some websites may not suspend properly and new tabs can be suspended unexpectedly.
Recent reviews
by No*****, 2026-06-13

Used an insane amount of processing power for 0 reason and once uninstalled it still worked with the session without the lag and performance usage
by Fi*****, 2026-05-26

by Fi*****, 2026-05-01
View all user reviews ›

Is The Tab Suspender Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

The Tab Suspender requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

The Tab Suspender is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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