Google has released a new Beta version 3 toolbar for Mozilla Firefox browser with the following new features:

Send To
You can use your Google Toolbar to share web pages via email, text message (SMS), or blog.

Google Docs & Spreadsheets
With the Google Docs & Spreadsheets feature enabled in the Google Toolbar, you can open most popular file types right in your browser. Google Docs & Spreadsheets will display these files in a new browser window when you either drag the file icon into your browser, click a link to a file on a web page, or double-click on a file icon. Enable this feature from the “Options” menu of your Toolbar.

Bookmarks
You’ll can now access your Bookmarks menu on any computer with the new Google Toolbar.

So if you don’t have Open Office or Microsoft Office installed on your computer, you can associate .doc and .xls files with Google Docs and Spreadsheets and double click on them to open in Firefox.

Download the toolbar here