Add-ons
Web and Developer Tools
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JavaScript Debugger
Requires Restart
As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.
Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.
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.
MR Tech Link Wrapper
Requires Restart
Wraps long links and lines to spare you from having to scroll left and right...
about:addons-memory 2016
IE Tab V2
Requires Restart
Ported version of IE Tab V2 (Enhanced IE Tab) that is compatible with SeaMonkey 2. Based on IETab.net work.
Restartless Restart
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
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
BrightSide XUL Installer
Automatically installs a set of domains to the Remote XUL whitelist.
SQL Cardfile
Android Debug Bridge For Firefox
This addon adds some Android Debug Bridge access to Firefox. It requires access to the adb/adb.exe executable from the Android SDK.
Scriptish
Requires Restart
The greatest user script engine on the Internet (a fork of Greasemonkey).
RequestPolicy v0.5 Legacy
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.
JSON Inspector
Inspect JSON object from a URL or entered data.
Requires either DOM Inspector or DOM Inspector Plus! [dm] extension.
printplus
Requires Restart
PDF export support by Gecko.
https://github.com/hATrayflood/printplus
Cookie Importer
Requires Restart
Imports cookies from a textfile.
Reads Netscape standard cookies.txt files as exported by IE and others.
Very useful in combination with the Cookie Exporter add-on.
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)
RefControl
Requires Restart
Control what gets sent as the HTTP Referer on a per-site basis.
Stylish Sync
IE Tab + (FF 8+, 7, 6, 5, 4, 3.6, 3.5, SeaMonkey)
Requires Restart
IE Tab + is an enhanced version of IE Tab. It supports FF 3.5 or greater, integrates IE Tab with Adblock Plus in the IE Tab engine, and synchronizes cookies between IE and Firefox. You can easily import settings from the original IE Tab into IE Tab +
To create your own collections, you must have a Mozilla Add-ons account.
