Безопасен ли perk.com?

I downloaded this and once I opened it, there were no options at all. It automatically: 1) Set itself as the default browser 2) Set itself as the default search on ALL my browsers 3) Cleared all my firefox settings 4) Closed all my other open browsers 5) Put multiple icons on my desktop 6) Pinned itself to the taskbar .... and so on. I do not recommend downloading this product. Again, it did these and there were NO OPTIONS at all.