Rated 3 out of 5 stars

There's a lot of room for improvement.

Great for REST development Rated 5 out of 5 stars

This is a great help when doing REST development, as the default XML renderer in Firefox is clunky. This works nicely and makes it easier to find what you are looking for in the response.
One feature I'd like to see is if it would turn attribute values that are http links (such as: <link href="http://.... />) into clickable hyperlinks.

Linux not supported? Rated 3 out of 5 stars

It would be cool if this addon will have Linux support!

Rated 4 out of 5 stars

Doesn't do too much, but what it does do is pretty handy, making Firefox's XML viewer a bit more flexible.

Not sure why this is marked as Windows-only as there's no em:targetPlatform in its install.rdf nor any binary code at all. Faked a Windows useragent, it installed fine, switched back to the default, extension still works fine. You can also just find the xpi in the page source and download directly. (This is not a bug report -- I don't believe the problem is with the extension, but with a.m.o. Just want to let my fellow non-Windows-developers know that this may work for them too.)

Rated 1 out of 5 stars

could not get it to work on xml output in browser

すばらしい。 Rated 5 out of 5 stars

ツリー表示してくれるし、コードハイライトしてくれるし、さらに要素を閉じたり開いたりできるし、文句なしです。
これを入れてFirefoxをXMLの規定のプログラムに設定しました。

Rated 4 out of 5 stars

Works well. One favour: could you add vertical lines that show the indentation level more clearly? (like Notepad++ does) Thanks!

Rated 5 out of 5 stars

Really great tool. Its always a hassle to close all nodes, and the xpath extract is great for xsl developers

This review is for a previous version of the add-on (1.1).