The Yahoo! Toolbar 1.0 for Firefox (download here) has now officially left the beta stage and is ready for business. The toolbar, which works on Windows, MacOS X and Linux, has all the usual features expected (bookmarks that follow you to any computer, customizable, one-click access to most of Yahoo!, or any web site you choose, easy addition of RSS feeds, etc) but also boasts the following enhancements:

-A drag-n-drop resizable search box
-A right mouse click menu to open bookmarks and toolbar buttons in new windows or tabs
-A search history drop down that automatically expands to the length of the longest search query
-Yahoo! Anti-Spy button that you can hide
-Addition of RSS / Atom feeds to My Yahoo! via the Live Bookmarks icon
-Support for the latest Firefox developer releases and alpha/beta browsers