Rated 5 out of 5 stars

Από τον/την Gary στις Δεκ. 24, 2009 · μόνιμος σύνδεσμος

Why was this important feature removed from 3.0? A very necessary extension.
Installed: Extra Folder Columns 0.3+ (patch included: mod version)
http://www11.atpages.jp/mozilla/extra_folder_columns-0.3+.xpi