Performancing for Firefox is a Fire-fox add-on that provides a full featured blog editor that sits right within Firefox. Performancing works with all the major blogging software (this and all my recent posts were created using Performancing. It has a reasonablly good WYSIWYG editor, plus support for Trackback, and integration with both Technorati and Del.icio.us. The web site has an an overview of the features in Performancing, and a Guided tour.
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