Warning: Chromium should not be used as a main browser, it is not stable enough. From Codeweaver’s Faqs:
Q. Should I run CrossOver Chromium as my main browser?
A. Absolutely not! This is just a proof of concept, for fun, and to showcase what Wine can do. Chromium itself is just beginning. As the Chromium project progresses, they will be providing more compelling support for Mac OS and Linux, particularly with process security and memory management. Those future versions from Chromium will be better suited for daily use than this version.