Today I installed the Firefox browser from Mozillla.org I wanted to start playing around with it, and particularly to try out some of the available extensions to the browser. In fact, this post is being created using the Deepest Sender extension. So far it seems to work as well as any of the stand-alone clients I've downloaded and installed.
On the subject of LJ clients, I have not found one that I thought was more than a glorified text editor. I was really hoping to locate one which allowed me to create postings offline and which would also allow me to cross post to two different journals without having to cut/paste the text into an external file in-between.