Stable signalNo paid features detectedMedium-risk permissions
Sloth icon

Sloth

Automatically discards all tabs at startup, before they load, reducing memory footprint and unnecessary bandwidth usage.

Users2KCurrent public install base
Rating4.4Store average score
Reviews31Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

Sloth Media preview

1 assets
Trend

User growth trend

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User Growth Over Time

2K2K2K2K2K2026年7月14日2026年7月17日2026年7月20日Latest: 2K
Rating trend

7-day rating trend

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7-day rating change

Start
4.42
Latest
4.42
7-day rating change
0.00
4.324.374.424.474.522026年7月14日2026年7月17日2026年7月20日Latest: 4.42
2026年7月14日2026年7月20日
Growth overview

Daily, weekly, and monthly growth

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1-day growthFlat
00%
7-day growthFlat
00%
30-day growthGrowing
+1K+100%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version0.6
ManifestV3
Size11.93KiB
Languages1English (United Kingdom)
Published
Store updated
Last crawled
English (United Kingdom)
Overview

Product summary

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An open-source and light-weight chrome / chromium extension which ensures that tabs are lazily loaded.

Source code: https://github.com/hrj/sloth

Requires Chrome 54+.

## How it works

This plugin uses the discard API available since Chrome 54. All tabs except new tabs or "special" tabs are discarded. Discarded tabs are visible in the tab bar, but not loaded from the network nor kept in memory.

If a window doesn't have a new tab, it is created and activated. This prevents any tab from loading during startup, unless you explicitly select it.

Reviews

Recent review snapshot

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Store average score4.4Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.2Average computed only from synced review bodies below
Reviews with text19Synced review bodies
Total ratings / reviews31Chrome Web Store public rating/review count

Store average score: 4.4. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5
14
4
1
3
1
2
0
1
3
Max Tsyba2026年5月20日
5

Works just as intended! Fixed high CPU load each time I cold start Edge browser.

Version 0.6Language en
Sára Kočí2026年4月2日
5

works!

Version 0.6Language en
NOUM2025年11月6日
3

- Should only unload the current tab on click on the icon, not all tabs, or rather includes an option to choose between the two - Shouldn't add a new tab on click on the icon if there's already an empty tab at the end of the tab list to avoid having a plethora of new tabs - This extension disables the opening of links requested by other programs on browser launch as it disables everything and opens a new tab instead. One can only open a link from an other program if the browser was already opened beforehand

Version 0.6Language en
1 helpful · 0 not helpful
Olg Olev2025年10月18日
5

Отлично!

Version 0.6Language ru
0 helpful · 1 not helpful
IT Forrest2025年9月11日
5

Works fantastically!

Version 0.5Language en
Xalomon2023年9月29日
1

I have 7 windows with more than 600 tabs opened total. The whole point of adding this extensions is to have a quick restart of the browser, and to have one with low memory usage as only the active tabs of those windows would be loaded. When looking at the task manager it seems this extension opens a gorillion of new tab pages in the background, each with their google.com subframe, even when told not to in options. Those are loaded instead of the pages I have opened, but this makes the browser slower to start up and those use 600MB memory which is more than the pages loaded from the background used. Completely the opposite of what one wants, and it's clear this wasn't tested with more than 500 idle tabs opened, which would be a reason to want an extension like this.

Language en
3 helpful · 2 not helpful
Online ReD Settings2022年4月27日
5

Simply perfect.

Language en
Ashish Bisht2019年12月13日
5

working awesome !

Language en
Anonymous user2019年3月3日
5

Funciona perfecto

Language es
Taehl2019年2月5日
4

Finally, something that stops all of my tabs loading at the same time. However, your "new tab" option doesn't work - opening Chromium loads the last tab, waits a moment, THEN opens a new tab.

Language en
1 helpful · 1 not helpful