Another good option with tons of features:

Dynamic Widgets
"Dynamic Widgets gives you full control on which pages your widgets will appear. It lets you dynamicly place the widgets on WordPress pages by setting conditional rules with just a few mouse clicks by role, dates, browser, language (WPML), for the homepage, single posts, attachments, pages, authors, categories, archives, error page, search page, custom post types, custom post type archives, WPEC/WPSC categories, BuddyPress Components and BuddyPress Groups"

http://www.qurl.nl/dynamic-widgets/

BTW, I'm in the same boat running FF 3.6.6. After reading this post I'm considering upgrading.

~Jeff