Web and Developer Tools
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UrlParams Requires Restart
Shows you the GET and POST parameters of the current website in the sidebar...
Sidebar Add Custom Tab Requires Restart
Adds an 'add custom tab' option to the Tabs drop-down menu of SeaMonkey's sidebar.
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.
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)
fixedzoomthumb Requires Restart
Shows Desktop size image when you hover over a thumbnail .Works with many sites including Amazon, Facebook, Flickr, YouTube.
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.
Live HTTP Headers (clone)
View HTTP headers of a page and while browsing.
This is an unofficial "Live HTTP headers" clone, mainly to fix the Replay feature!
User Agent Changer Requires Restart
Adds a menu and a toolbar button to change the user agent of a browser.
printplus Requires Restart
PDF export support by Gecko.
https://github.com/hATrayflood/printplus
DOM Inspector Plus! [dm] Requires Restart
Improved DOM Inspector! [dm version]. Box Model new layout & more data, see screenshot!. Horizontal scroll for Dom-Tree, and some more.
Inspects the structure and properties of a window and its contents.
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.
About Add-ons Requires Restart
Adds an About button to extensions, themes, and languages in the Add-ons list.
Zing! Locale Switcher
Want to change from one language to another? Zing! and the locale is switched.
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.
Controle de Scripts Requires Restart
Controle de Scripts is an extension that allows you to control what JavaScripts do on your browser.
MR Tech Link Wrapper Requires Restart
Wraps long links and lines to spare you from having to scroll left and right...
To create your own collections, you must have a Mozilla Add-ons account.