UnloadTabs

Unload your tabs to free resources and prevents them from loading unintentionally

UnloadTabs: Free Resources and Unload Unwanted Tabs in Firefox

UnloadTabs is an efficient Firefox add-on that not only allows users to free up resources by unloading unnecessary tabs, but also adds a context menu to unload the current loaded or other tabs. It averts loading tabs when the active tab shuts, offers shortcuts for navigation, and makes it clear which tabs are loaded through its unique grayed out features for unloaded tabs. It is also compatible with Tree Style Tab, Container Tabs, and Hidden Tabs.

Add-on stats

Manifest V2
By: NiklasG
Daily users: 3,526
-17
Version: 0.8.5 (Last updated: 2019-09-06)
Version code: 4853235
Creation date: 2016-06-10
Weekly download count: 54
Firefox on Android: No
Permissions:
  • storage
  • menus
  • notifications
  • tabs
Size: 92.57K
URLs: Website
Full description: See detailed description

Other platforms

Not available on Chrome
Not available on Android
Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Freed up memory and CPU by unloading active tabs
  • Helps manage high numbers of open tabs (50+)
  • Integrates well with Tree Style Tab for better organization
  • Useful in scenarios with limited internet speeds
Cons
  • Only supports unloading tabs on a per-tab basis, not for multiple tabs at once
  • Increasingly encountered issues causing browser breaks
  • Firefox already has a built-in Tab Discard feature
Most mentioned
  • Ability to unload individual tabs to save resources
  • The need for a more efficient way to unload multiple tabs
  • Integration with Tree Style Tab
User reviews
by Lukita, 2025-03-19

works only for PER TAB basis, where the user can unload SINGLE tabs, one by one! can't be used for multiple shift+selected tabs, which completely misses the point of temporarily removing whole window of open tabs from RAM when doing other kind of research in another window it's actually much simpler to create a new folder for bookmarks, drag all the tabs there, and then close the tabs instead, which will completely remove them from RAM

View all user reviews

Add-on safety

Risk impact
Moderate risk impact

UnloadTabs 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.
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Risk likelihood
Low risk likelihood

UnloadTabs has earned a fairly good reputation and likely can be trusted.

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