Is it possible to keep the two in parallel ? I know you can on windows and osx on ubuntu I get a conflict when trying to install either one if the other is installed.
It's not exactly what you asked for, but I would suggest using Chrome for your daily browsing and Chromium latest version in parallel for development.
You can find the latest Chromium builds on the CI: http://commondatastorage.googleapis.com/chromium-browser-continuous/index.html
And more detailed information over there: http://linuxsagas.digitaleagle.net/2012/11/20/canary-alternative-for-ubuntu/
You can install the development version in a chroot: https://help.ubuntu.com/community/BasicChroot