>Setup Blank page: Check Picture1
>SetUp Session: Check Picture 2 (Because I use TabMixPlus session manager I'm not sure if it looks the same as built-in one)
>
>UPDATE: HA!!!!!!!!!!! Why I can not attach pictures to my answer????
>
>SO:
>
>1. Tools->Otions->Main->StartUp->Show a BlankPage
>2. Tools->Session Manager->Settings

I don't have the second menu choice (FF 3.5.4 version)

I used the first path - thanks.