nOObs enhance your Google Search, Gmail, Google Calender and Google Reader and Flickr with these firefox extensions.

1. Better Gmail: Download
2. Better GCal : Download
3. Better GReader : Download
4. Better Search : Download
5. Better Flickr : Download

Usage:
Once there are installed, go to your Google Search/ Gmail/ Google
Calendar/ Google Reader/ Flickr to see the enhancements. To turn a
feature on or off, visit the extensions Preferences dialog and select
or deselect the appropriate checkboxes. Refresh your page to see the
changes.