Sorry - that definitely wasn't my intention! Although to be clear, I don't mean this to be anything negative about Mozilla, just an interesting collection of their past projects. There are definitely some changes I can make to the copy though, especially since this list is meant to include everything from commercial products to experiments and internal tools.
I think this differs from Killed by Google somewhat in that Google has killed off several commercially-viable products with active users, so I can see a possible intention there as a warning about relying on Google services.
Edit: as another comment said below, "abandoned" is probably a better choice of words for a lot of these projects.