Google has released an official beta, what isn’t beta from Google these days, of their toolbar for Firefox. Previously this was only available for IE-users. Get the toolbar at: http://toolbar.google.com/firefox/
Furthermore they’ve released two more extensions:
- Google Send to Phone: Send text-messages of web-content (U.S. only!)
- Google Suggest for Firefox: Get search-term-suggestions right in the FF searchbar. Just like Google Suggest