Customize the Google

* Use Google Suggest (suggest words while you're typing)

* Add links to competitors
* Rewrite links to point straight to the images in Google Images
* Removes image copying restrictions in Google Book Search
* Secure Gmail and Google Calendar, switch to https
* Block Google Analytics cookies
* Hide the Gmail spam counter
* Make URL previews on sponsored links visible
* Add favicons in the web search result

* Remove ads
* Anonymize your Google userid
* Add a result counter in search result
* Filter spammy websites from search results
* Add links to WayBack Machine (webpage history)
* Remove click tracking
* Add links from Google to your bookmark manager
* Use a fixed font for Gmail mail bodies
* Stream Google search result pages
* Sticky Google Preferences

Really Wonder Full Feature list. and simple to use addon.
Don't Worry friends this is not a Firefox Lovely addon. it can be used along with Internet Explorer too.

Links :
Firefox
Internet Explorer

Enjoy Customize according to your Flavour.

Have look :
Firefox tricks