Web and Developer Tools
Sort by:
NoRedirect Requires Restart
NoRedirect lets the user take control of HTTP redirects. It can be used to interdict an ISP's DNS search redirection hijacks, preview/screen "shortened" URLs (e.g., TinyURL), stop the annoying redirection of "smart" error pages, etc.
RequestPolicy Requires Restart
Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.
Tamil to Sinhala Transliteration Requires Restart
Transliterate Tamil selected text in to Sinhalese. When click on that text full transliterated text display as popup.
EmotiConverter Requires Restart
Post your best emoticons of the easiest and fastest way.
WorldIP - Geo Add-on with Security Features Requires Restart
Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter
AuctionSearchKit Requires Restart
One-click eBay tools providing useful information to the buyer including a map of where items are located, past feedback on similar items and seller history/statistics.
DOM Inspector Requires Restart
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
SQLite Manager Requires Restart
Manage any SQLite database on your computer.
Firesizer Requires Restart
Allows you to resize the window to specific dimensions.
NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
XML Digital Signature Tool Requires Restart
XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)
Key Manager Requires Restart
KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation
Font Finder Requires Restart
FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.
Element Hiding Helper for Adblock Plus
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
Relaxed the HTML Validator Requires Restart
"Relaxed" is a HTML validator which validates HTML documents using it's own schema definitions written in Relax NG with embedded Schematron patterns.
docked JS-Console Requires Restart
docks the JS-Console to the Bottom of the Browser
feel free to have a look at the source (see below) and suggest enhancements (borstel33 web de , Subject: docked JS-Console)
Live HTTP Headers Requires Restart
View HTTP headers of a page and while browsing.
MR Tech Link Wrapper Lite Requires Restart
Wraps long links and lines to spare you from having to scroll left and right...
Mnenhy Requires Restart
The primary goal of the Mnenhy project is to make some enhancements to SeaMonkey MailNews/Thunderbird, since there're still plenty of comfort functions missing if compared to Netscape 4.x and other mail and news clients.
Re-Pagination
See more search results etc. on one page, concatenating several pages together...
To create your own collections, you must have a Mozilla Add-ons account.