Finally, LiveWriter support for FireFox. Gotta love it.
Blog This for Firefox 2.0 now available on Windows Live Gallery
The Windows Live Writer Blog This extension for Firefox has been updated to officially support Firefox 2.0 (in addition to Firefox 1.5.x).
The Blog This for Firefox extension adds a button to Firefox which starts a new Windows Live Writer blog post prepopulated with content and title from the current web page. Blog the whole page, or just selected snippets. Interacts with other registered plugins to parse and structure web content where appropriate. Blog quickly when you find something of interest on the web.
Developer, Windows Live Writer
Source: Writer Zone