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15日2026年7月18日2026年7月21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15日2026年7月18日2026年7月21日Latest: 4.42
2026年7月15日2026年7月21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

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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
Giorgio Liscio2018年12月7日
1

Open all bookmarks in a folder doesn't seem to work... all tabs start loading at the same time

Language en
2 helpful · 3 not helpful
lori f2018年11月17日
5

Does what it says; simply works.

Language en
krister viirsaar2018年9月28日
1

The promise is great, but unfortunately having this extension installed made the browser forger URLs of my pinned tabs. Tab was still there, but was left at about:blank. Uninstalling this (and only this extension) fixed the problem.

Language en
3 helpful · 0 not helpful
Rainbow Warrior Princess2018年9月18日
5

"All tabs except new tabs or "special" tabs are discarded. Special tabs are those with chrome:// URLs, for example." Special tabs are also pinned tabs, right? And what about the startup page? Suggestion: Option to automatically load the startup page or a defined page (whitelist)

Language en
0 helpful · 1 not helpful
Colin Gott2018年7月27日
5

It works!. It makes tabs remain unloaded until you switch to them. CPU and memory are now available for tasks!

Language en
2 helpful · 0 not helpful
sooqua2018年6月26日
5

This cured my cancer. 11/9

Language en
1 helpful · 1 not helpful
Алексей LeX2018年4月7日
5

Thanks!

Language en
Artem Smirnov2018年3月14日
5

Работает отлично, спасибо! Works well, thanks!

Language ru
1 helpful · 0 not helpful
Rosdi Kasim2018年2月18日
5

Works as described! Love this extension.

Language en
3 helpful · 1 not helpful