Error 404 Wayback Machine

Name: Error 404 Wayback Machine
Rating: 4.1667 (12 reviews)
Author: Didier Lafleur

By: Didier Lafleur

Checks every 404 pages. If an archive exists in archive.org, a banner is displayed to open this archive.

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Features & Capabilities

Error 404 Wayback Machine is a handy Chrome extension designed to enhance your browsing experience by detecting common error codes such as 404, 408, 410, 451, and various server errors (500-series). When you encounter these errors, the extension automatically checks if archived versions of the requested pages are available on archive.org. If an archived version exists, it displays a convenient banner allowing you to access the historical page easily, saving you time and frustration.

This tool is particularly useful for researchers, students, or anyone frequently encountering dead or unavailable webpages. For instance, testing the extension with a known dead link—like a missing page from the White House website—demonstrates how effortlessly you can retrieve archived content without manual searching. Enhance your web navigation with Error 404 Wayback Machine and never miss important information due to broken links again.

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

Daily users:

Rating:

Version:

1.3resigned1 Last updated: 2024-04-25

Version code:

5727530

Creation date:

2017-01-22

Risk:

Permissions:

webRequest
webRequestBlocking
http://*/*
https://*/*
<all_urls>

Size:

268.38KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-20

Compare stats and ranking:

Ranking

# 8,302 ▲ 27

Other rankings

#4 in error keyword 16 #7 in machine keyword 31 #35 in cmd+m (mac) keyword 19 ▼ 1#35 in opportunity keyword 4 #38 in exist keyword 23

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:

Didier Lafleur

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/error-404-wayback-machine/

User Reviews

by Fi*****, 2025-04-09

by 敬念*****, 2025-03-25

by 全民*****, 2025-02-25

View all user reviews ›

Is Error 404 Wayback Machine 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.

Error 404 Wayback Machine requires a few 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.
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******

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.

Error 404 Wayback Machine 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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