Fluid is not a Web Browser
I realize this is an old post, so to the author, please disregard this reply if you have discovered the answer to your concern.
Fluid App is NOT a web browser. It is an application that turns url's into desktop applications. It's default function is to utilize your default browser to open the url's.
If anyone knows of a way to get links to open in a different browser, other than the Mac OSX default browser, please post it.
The above line in red should read, "It's default function is to utilize a tiny browser (SSB: Site Specific Browser) to open url's."
The fluid app browser removes common browser functions (such as those in Safari, Firefox, or Chrome), so that the website is the primary screen real estate holder.