I prefer the old page of add-on, at least you knew how to navigate. I understand the change but I find it cold and missing so many things.
ex: missing add-ons, is it because no longer supported by the new version of Firefox? also where are all the comments for each add-on ?
ex: I like to install my Xmarks bookmark addon. I click on Bookmark icon and bring me to a page saying there is only 8 add-ons and there is no Xmarks listed. I had to search for it and found it.
If you like to keep the new page add-on that is fine but at least link all your add-ons like the way it was before. Another word you not giving more choices to the user to install what they like, your showing this what we have that it.