Surfing the web is great, but there is always a possibility that someone could be listening in on your traffic. Running SSL encrypted sessions help, as long as you attentive enough to check the verifying signature and it possibly? could give you a indication if someone is doing a MITM attack + SSLSTRIP at the same time.
Google have introduced SSL encrypted searches some time ago, the search address can easily be recognised by the https:// URL and the indication of a padlock on the bottom left hand corner of the Firefox browser.
To add Secure Google search in firefox:
Go to Firefox add-ons page and search for Secure Google, proceed add it to Firefox.
Once that is done, select Secure Google Search from the search bar.
Enjoy secure searches, note the verification authority and the https:// in the URL bar.