Yesterday, I switched to Firefox again, because I felt it was faster now (I'm using the beta version, which is awesome). But I really couldn't live with a separate search bar. I really loved the simplistic Omnibar that Chrome offered.
So, I went out and looked for an add-on that let me do that, which I knew would exist. I just found the one. So, the add-on is called 'Omnibar'... not very special. And it combines the search bar and the address bar, without interfering with either of them, and without disabling anything. I still have the option to switch search engines just like before, and it does give suggestions and stuff like Chrome.
So, Omnibar for Firefox looks like this:
If you were using Chrome only because of the Omnibar, you don't have any reason not to switch to Firefox.
Get Ajit K's Omnibar Firefox add-on now.
Remember to get a look in my archives for some fun tips and tricks.