Update Scanner

Name: Update Scanner
Rating: 3.9897 (195 reviews)
Author: sneakypete81

By: sneakypete81

Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.

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Features & Capabilities

Update Scanner is a powerful Chrome extension designed to monitor your favorite web pages for any changes. Perfect for websites that lack Atom or RSS feeds, it lets you specify how frequently each page should be scanned. The extension automatically highlights changes on the pages, ensuring you never miss an update. Users can also configure it to ignore minor modifications and benefit from full international support, making it adaptable to various languages and regions. Stay informed effortlessly with Update Scanner's intelligent page monitoring features.

User Growth & Download Statistics

Add-on Developer Tools

By:

Daily users:

Rating:

Version:

4.4.0 Last updated: 2020-02-07

Version code:

3207976

Creation date:

2006-09-11

Risk:

Permissions:

<all_urls>
alarms
notifications
storage
tabs
unlimitedStorage
*://twitter.com/*
*://www.facebook.com/*

Size:

197.54KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 1,297 ▲ 1

Other rankings

#39 in Bookmarks ▲ 1

#59 in Feeds, News & Blogging ▲ 1

#1 in update keyword 15

#13 in scan keyword 22

#28 in x data keyword 11

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For Developers

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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:

sneakypete81

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/update-scanner/

Website:

https://github.com/sneakypete81/updatescanner/issues

User Reviews

Update Scanner is highly useful for monitoring page updates and is praised for being simple and free. However, many reviews note that it is no longer maintained, leading to reliability issues (blank pages, missing changes, deleted alerts) on many sites. It remains usable for some pages and for long-time Firefox users who rely on it, but compatibility with newer Firefox versions and OS setups is a concern.

Pros

Extremely useful for monitoring pages for updates and changes.
Simple, lightweight, and free to use.
Still works for some sites and remains valued by long-time Firefox users despite lack of updates.
Popular among Firefox users and considered essential by some.
Easy to use and quick to set up.

Cons

Maintenance has been abandoned; development stopped years ago.
Reliability issues across sites, with many pages loading blank or not showing changes; alerts can disappear.
Compatibility with newer Firefox versions/OS can cause UI problems (e.g., panel issues on Win11/FF117).

Recent reviews

пригодилось в работе, советую

by Kr*****, 2026-03-13

sooo useful add-on

by OK*****, 2026-01-30

отличная расширенька

by ch*****, 2025-09-07

View all user reviews ›

Is Update Scanner 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.

Update Scanner requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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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.

Update Scanner 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 **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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