POST Service & Consulting Limited
Attn: 47B31851FF210410F
Independence Ave, P.1523
Victoria, Mahe, Seychellen

Email: support [at] startxxl [dot] com

StartXXL removal:

If you won't use StartXXL anymore, you have to uninstall the StartXXL Add-on for Firefox, if it was installed before. You can do this in the Firefox menu Tools -> Add-ons. After that, you have to restart Firefox. Now you can change the value of the homepage in the regular Firefox settings.