Google has released beta 3 of the Firefox Google toolbar. This toolbar requires Firfox 1.5 or above version. It seems that the beta doesn’t work with Firefox 2.0 on Windows XP. I tried installing on two different XP machines without any luck (Yes, I tried the Google suggestions also!). It is quite unbelievable that Google releases something without testing on such a common configuration!

Key new features are,

Custom buttons - You can now add your own custom buttons to the toolbar. A button gallery is also available.

Bookmarks - It is possible to create and save online bookmarks in your Google account. Probably this indicates that stumbleupon/del.icio.us features may be incorporated in future!

Send to feature - Allows you to send Web pages via SMS or email. You can also select a portion of a Web page to send.

Google docs & spreadsheet integration - Drag & drop office files in the toolbar! Also clicking on a link to supported file types will open the Google office tools.

Further Reading
New features in Google toolbar 3 for Firefox
Download Google toolbar 3 for Firefox