Link checking and repairing
About this Collection
To see how many 404s there are
13 Add-ons in this Collection
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon
Until Firefox 56, use 0.974 (other versions)
For Firefox 57, see Web Extensions below
Extracts all links from web page, sorts them, removes duplicates, and displays them in a new tab for inspection or copy and paste into other systems.
Dead pages, broken links, the scourge of the internet. Powerhouse sites like Slashdot and Digg can bring a server to its knees. What do we do when a page is dead but we still want to see it? Call in the clerics, and perform a resurrection...
Unfortunately, due to bug 385712, the Places Tree View does not currently allow custom columns! With that news, this extension cannot be updated for v3.
Updated from v0.6.8, extension 'Bookmark Link Checker' detects updated, redirected, and broken li...
Looks for broken links on page, links that are not working anymore - returning 404 code.
You can select to check whole page, or just links in selection.
You can check anchors, options, area tags.
Is incredible fast and lightweight !
Quickly view or copy the URL to a cached version of any wesbite using Google, Coral CDN, or The Way-Back Machine. Allows you to access websites that have crashed or have shut down. Cacheit! can also be useful for bypassing internet filters. Enjoy. :)
42 weekly downloads
The Wayback Machine: Over 450 billion archived web pages.
Collector's Note Search engine
Check wether a website is down or not when Firefox cannot load a page.
Web Mirror Viewer displays various internet mirrors of an open tab or right-clicked link via the right-click context menu. Useful for dealing with dead pages/broken links and getting around proxies.
An extension for retrieving and displaying the HTTP status code right beside the link on a page.
24 weekly downloads
See a website as it used to look using the Internet Archive Wayback Machine
Checks Free File Hosts for Link Status with right-click menu.
Works with selected (highlighted) text & clickable links.
Rapidshare, 4shared, Zippyshare, Zshare, LetitBit, Badongo, Filefront, Speedyshare, Uploading, BigUpload, YouSendIt & many more!