For example, in the 2016 Pwn2Own successful attack on Chrome relied on four security vulnerabilities.
Two of the vulnerabilities were in Flash, one was in Chrome, and one was in the Windows kernel.
Silverlight out of browser updating
Chrome developers have indicated that a master password does not provide real security against determined hackers and have refused to implement one.
Bugs filed on this issue have been marked "Wont Fix".
For comparison, Firefox 19 scored 193 failed/11752 passed and Internet Explorer 9 has a score of 600 failed, while Internet Explorer 10 has a score of 7 failed.
In 2011, on the official CSS 2.1 test suite by standardization organization W3C, Web Kit, the Chrome rendering engine, passes 89.75% (89.38% out of 99.59% covered) CSS 2.1 tests.
In 2016, Google announced that it was planning to phase out Flash Player in Chrome, starting in version 53.