vstest.console.exe doesn't list extension

I'm trying to get the GoogleTest Runner extension working in Visual Studio 2013 Pro. (http://visualstudiogallery.msdn.microsoft.com/9dd47c21-97a6-4369-b326-c562678066f0)

The extension is listed in "Extensions and Updates", but tests doesn't appear in the Test Explorer. When I click "Run All" the tests are built, but no tests are found. If I run the tests that was built manually from the console they run just fine.

When I type vstest.console.exe /UseVsixExtensions:True /listdiscoverers into the console then the GoogleTest Runner extension is not listed. Shouldn't it be listed there?

Any tips or hints on how I can debug this further?

-Cheers!