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WebMail Notifier checks your webmail accounts and notifies the number of unread emails. Currently supports mail.google.com(Gmail & Google Apps) mail.yahoo.com mail.live.com(hotmail,msn,live) www.daum.net(hanmail.net) www.naver.com www.empas.com www.nate.com

Ever been annoyed by all those ads and banners on the internet that often take longer to download than everything else on the page? Install Adblock Plus now and get rid of them. Right-click on a banner and choose “Adblock” from the context menu — the banner won’t be downloaded again. Maybe even replace parts [...]

FoxyProxy is a set of proxy management tools for Firefox, Thunderbird, Seamonkey, and Songbird. Animated statusbar/toolbar icons show you when a proxy is in use Define multiple proxies Define which proxy to use (or none!) for arbitrary URLs using wildcards, regular expressions, whitelists, blacklists, and other conveniences No more wondering whether a URL loaded through [...]

TamperData is an extension to track and modify http/https requests. What I use it for security testing of Web based applications tracking request/responses It’s just cool.

ColorZilla is an extension for Mozilla Firefox and the Mozilla Suite. It assists web developers and graphic designers with color related tasks – both basic and advanced. With ColorZilla you can get a color reading from any point in your browser, quickly adjust this color and paste it into another program. You can Zoom the [...]

lori can tell you how long it takes to load a page. Useful for web developers who are working on profiling, optimizing a web site.

Vimperator is a free browser add-on for Firefox, which makes it look and behave like the Vim text editor. It has similar key bindings, and you could call it a modal web browser, as key bindings differ according to which mode you are in. Vim-like keybindings (h,j,k,l,gg,G,0,$,ZZ,<C-f>,etc.) Ex commands (:quit, pen www.foo.com, …) Tab completion [...]

YSlow is a Firefox add-on integrated with the popular Firebug web development tool. It analyzes web pages and tells you why they’re slow based on the rules for high performance web sites. It features Performance report card HTTP/HTML summary List of components in the page Tools including JSLint

FFClickOnce is a Firefox extension that adds an extra option when you click on a link to a ClickOnce application. \ ClickOnce is a deployment technology that allows you to create self-updating Windows-based applications that can be installed and run with minimal user interaction. A ClickOnce application is any Windows Forms or console application published [...]

SwitchProxy Tool  is a Mozilla tool you can use to organize all your proxies. You can add, edit and remove them from a single master list. When you need to use one, just select it from the list and click apply. It also has an Anonymous Proxy feature. An anonymizer uses a list of proxies [...]

Aardvark is a Firefox extension that can be used to Clean up unwanted banners and surrounding “fluff,” especially prior to printing a page See how the page is created, block by block View the source code of one or more elements

The Pencil Project provides a free and open source tool for making diagrams and GUI prototyping. As quoted from the website, it features Built-in stencils for diagraming and prototyping Multi-page document with background page On-screen text editing with rich-text supports PNG rasterizing Undo/redo supports Installing user-defined stencils Standard drawing operations: aligning, z-ordering, scaling, rotating… Cross-platforms [...]

One thing I like about Firefox is the abundance of extensions out there which can do almost anything that you can think of. Solvent is a Firefox extension that helps you write screen scrapers for Piggy Bank. Piggy Bank is a Firefox extension that turns your browser into a mashup platform, by allowing you to [...]