Crohn Life -レビュー Download Statusbar-
http://users.kyoto-kcg.ac.jp/~e03l0603/mozext/mozilla/review_download_statusbar.html
mozdev.org - downloadstatusbar: installation
http://downloadstatusbar.mozdev.org/installation.html
Install for Mozilla (0.8a)
http://downloads.mozdev.org/downloadstatusbar/downbar/downbar_mozilla.xpi