Search the Wayback Machine and your favorite search engine for missing web pages.

Latest Version

Version
1.1.0
Update
February 17, 2016
Size
33.99KiB
Developer
Category
Users
254
Rating
4.2 ★
Manifest Version
2
Web Store Status
Languages Support
English (United States)
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Permissions
Tabs
Storage
WebRequest

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404-me-not Extension

404-me-not saves you time by making it extremely easy to search for missing webpages. It will search both the Wayback Machine (a huge database of archived pages) and whatever search engine you choose, using the last part of the URL and keywords you supply as clues.

Searches are triggered by clicking Ok on a popup that automatically shows when a 404 error (page not found) is detected or by dragging the offending link (and optionally the highlighted link text; this requires another extension).

Note: As explained in the demo video, 404-me-not is open source and does not report data about the sites you visit to anyone.

Changelog
---------

v. 1.1.0 -- If install is an update don't display options.
v. 1.0.0 -- Code cleanup. Changed parsing behavior so trailing URL slash, page extension, and query strings are always ignored.
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Source Manifest.json

{ "background": { "scripts": [ "background.js" ] }, "content_scripts": [ { "js": [ "dragit.js" ], "matches": [ "http://*/*", "https://*/*", "ftp://*/*" ], "run_at": "document_start" } ], "description": "Search the Wayback Machine and your favorite search engine for missing web pages.", "icons": { "128": "icon128.png", "16": "icon16.png", "32": "icon32.png", "48": "icon48.png" }, "manifest_version": 2, "name": "404-me-not", "options_page": "options.html", "permissions": [ "tabs", "storage", "webRequest", "" ], "update_url": "https://clients2.google.com/service/update2/crx", "version": "1.1.0", "page_action": { "default_icon": {"38": "icon38.png"}, "default_popup": "popup.html" }}
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How to download and manually install 404-me-not extension for Chrome

Looking for a way to install 404-me-not extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install 404-me-not extensions manually, this article outlines two simple methods to effortlessly install 404-me-not extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download 404-me-not extension and manually install through Drag &Drop

If you ever need to manually install a 404-me-not extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the 404-me-not Extension by clicking the "Download CRX" button on the website.

Look for the 404-me-not extension you wish to install. Go to the website and download the 404-me-not extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for 404-me-not extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the 404-me-not extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download 404-me-not extension for Chrome and install in Developer Mode

This is another method to install 404-me-not extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the 404-me-not extension file

Select and download the 404-me-not extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the 404-me-not extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your 404-me-not extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the 404-me-not extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install 404-me-not extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Meaty proctor (ID: 000000ceae57d9d9) Voted 1 ★ - Updated 05/03/2018 Wayback machine doesn't like me

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Gregory Beard (ID: 0000004e653599e9) Voted 5 ★ - Updated 01/30/2016 This extension is awesome! No more 404 problems :)

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Andrew Hebert (ID: 00000054fbedbe7c) Voted 5 ★ - Updated 01/24/2016 Works as advertised!