ScribeFire (previously Performancing for Firefox) is a full-featured blog editor that integrates with your browser and lets you easily post to your blog. You can drag and drop formatted text from pages you are browsing, take notes, and post to your blog.

Adds a menu and a toolbar with various web developer tools.

FoxClocks lets you keep an eye on the time around the world - or just your local time - by putting small clocks in your statusbar.

The steps to remove misspelled words from your Firefox dictionary.

Screengrab! is an extension for Firefox that makes it easy to save a web-page as an image. With it, you can save anything that you can see in a browser window - from a small selection, to a complete page.