Maximize message pane by collapsing the thread pane. You can read a message in larger area without opening a new message window.
In addition to the functionality above, the following functionalities are provided:
* hide the folder pane,
* change folder selection from the toolbar button or the context menus (it is useful when the folder pane is hidden),
* hide the message pane by the toolbar button,
* save visibility of the folder pane and the last selected message.
* change message selection by the navigation bar when the message pane is maximized
Documentation for the extension is available on my homepage. If you have some curiosities, please read it. Maximize Message Pane has some hidden options. A documentation for them is also available there.
Get them from http://www.geocities.jp/wknxc134/moz_ext/index.html
Please refer to the following link for supported locales:http://hogiblog.blogspot.com/2007/11/call-for-translation.html
::: For Stacked View Extension user :::
This extension does not work on the stacked view layout. Change to other layout before you maximize the message pane.