Developer reply by linuxquestions
Rated 1 out of 5 stars
It uses the in forum search engine of the site, that is not very effective. A general search through any major web search engine certainly give better results. I don't recommend it to anyone.
To be fair, that's exactly what the addon is meant to do (and what the description says it will do).
To create your own collections, you must have a Mozilla Add-ons account.