New Tab Suspender

A very lightweight tab suspender to suspend inactive tabs that reduces an overall memory usage of Firefox, uses a Firefox native discard API

New Tab Suspender is a lightweight Chrome extension designed to help you manage your browser's memory usage efficiently. It automatically suspends inactive tabs after a customizable timeout period, freeing up system resources and keeping your browser running smoothly.

Utilizing native discard APIs similar to Firefox, New Tab Suspender ensures seamless performance without heavy overhead. The extension offers localization support in multiple languages, including English, Hindi, Spanish, Russian, and French, making it accessible to a global audience.

Manifest V2 Add-on
By:
Pradeep Mishra
Daily users:
10,560 60
Rating:
4.33
(86)
Version:
1.9 Last updated: 2021-11-20
Version code:
5326638
Creation date:
2020-02-05
Risk:
Moderate risk impact Low risk likelihood
Permissions:
  • tabs
  • storage
  • sessions
Size:
23.46KB
Email:
pr*****@gmail.com
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Data ingested on:
2025-07-14

User reviews

New Tab Suspender effectively reduces browser memory usage by suspending inactive tabs, especially useful for users handling many open tabs. Its customizable suspension timing and exclusion options are appreciated, though several users report that time settings and exclusion features are unreliable or hard to manage. The add-on lacks good documentation and backup features, making settings management cumbersome. Additionally, it can suspend tabs with active forms, risking data loss unless those tabs are whitelisted. Overall, it is functional but could improve usability and reliability regarding customization and preserving user data.
Pros
  • Effectively suspends inactive tabs to save memory.
  • Works well with a large number of tabs open, helping reduce RAM usage.
  • Allows modifying the suspension time from seconds to an hour.
  • Has an option to prevent specific tabs from being suspended.
  • Runs automatically in the background without user intervention.
Cons
  • Time limit settings sometimes do not work as expected (e.g., fixed at 5 minutes despite user changes).
  • 'Do not suspend this tab' option does not visibly indicate which tabs are excluded and lacks batch management.
  • No clear or accessible interface for setting suspension time, whitelists, or exclusions; lacks documentation.
  • No import/export feature for backup or syncing settings across devices.
  • Suspends tabs even if forms are active, causing loss of entered data if not whitelisted.
Recent reviews
by Fi*****, 2025-06-19

by 全民*****, 2025-03-29

Great tool for people like me who are living on low RAM. please add a 3 minutes window/ custom window for "suspend after dropdown"
by me*****, 2025-03-19
View all user reviews ›

Extension safety

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.

New Tab Suspender requires a few sensitive permissions. 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.
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 Browser Add-ons, 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.

New Tab Suspender has earned a fairly good reputation and likely can be trusted.

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