Chromium Browser And Iron Running Side By Side

After running and quitting Iron I got this error when running Chromium-browser from Debian ( http://packages.debian.org/squeeze/chromium-browser )  :

Just go to ~/.config/chromium/Default folder and delete file Web Data. The error message is gone!

Next step will be to create a different profile for Iron :
mkdir ~/.config/chromium/Iron     Iron will be the different profile folder for Iron.
Make a shortcut for Iron containing the command :
/home/username/iron-linux-64/iron --enable-webgl --user-data-dir=".config/chromium/Iron"

Now you can run Chromium-browser and Iron side by side ( simultaneously ) with a different profile.