Review for Google + Bing + TAM = Qrobe.it (HTTPS/SSL/Private) by Nahtee
Rated 5 out of 5 stars
Since I couldn't add this to my Firefox via "Manage Search Engines"..."Sorry, you need a Mozilla-based browser (such as Firefox) to install a search plugin.", I made it my default SE from the address bar and removed the searchbar from my browser.
imho it's better to do your searches from the address bar anyway.
To create your own collections, you must have a Mozilla Add-ons account.