This is how the website jetbrowser.com looks:

The Jet Browser installation file JetBrowserSetup.exe was scanned with 46 antivirus programs and 3 detected adwares and other potentially unwanted programs.
Below are the antivirus software and the threats they have detected.
Here is the result of the scan:
File name: JetBrowserSetup.exe
Detection ratio: 3 / 46
Analysis date: 2013-02-27
Antivirus - Threats
------------------------------
AVG --- Suspicion: unknown virus
ESET --- NOD32 a variant of Win32/InstallBrain.W
VIPRE --- InstallBrain (fs)
If you have already installed this browser, click here to use AdwCleaner to remove the Potentially Unwanted Programs that were installed. AdwCleaner is a very small program and doesn't require any installation.
You may also use Sophos free virus removal tool, click here to download.
I do not recommend downloading and installing the Jet Browser. Click here to learn more about Potentially Unwanted Programs (PUP).