Replace flash audio players with an HTML5 player in Safari.

Add URL to Pinboard Safari Extension

These Adobe Fireworks extensions are mainly productivity enhancement tools. They won't help you make better-looking pictures; rather, they'll help you use Fireworks more efficiently. And if you're an extension developer yourself, some of them will help you build your own commands and Flash panels.

Extends the Structure Module with a tag pair allowing html markup freedom and supporting all EE standard and custom fields and categories.

YSlow analyzes web pages and tells you why they're slow based on the rules for high performance web sites. YSlow is a Firefox add-on integrated with the popular Firebug web development tool.

The Aardvark extension was one of my favorite extensions that broke in Firefox 2.0 and now someone has posted a new version that now works.