The Google-commisioned research emphasizes on several key points that would make up a secure browser, namely the integration of sandboxing, plug-in security, JIT hardening, ASLR, DEP, GS and URL blacklisting.
Key summary point:
The URL blacklisting services offered by all three browsers will stop fewer attacks than will go undetected. Both Google Chrome and Microsoft Internet Explorer implement state-of-the-art anti-exploitation technologies, but Mozilla Firefox lags behind without JIT hardening. While both Google Chrome and Microsoft Internet Explorer implement the same set of anti-exploitation technologies, Google Chrome’s plug-in security and sandboxing architectures are implemented in a more thorough and comprehensive manner. Therefore, we believe Google Chrome is the browser that is most secured against attack.
Moreover, according to the report Mozilla's Firefox has the highest vulnerability count compared to Google's Chrome and Microsoft's Internet Explorer. Firefox leads with 449 patched vulnerabilities, followed by Chrome with 321 and Internet Explorer with 168.
Would you switch browsers over the results from a comparative review such as this one commissioned by Google? Do you believe that Chrome is indeed the most secure browser around, or are they other factors to consider as well?