Firefox Activity Streams

Just noticed that firefox are implementing a feature called "Activity
Streams"

"We plan to show rich content with images from recent pages, screen shots,
downloads, closing sessions, notifications, and improve your results in the
awesome bar. Eventually we hope to be the central feed of the things you
care about."

https://wiki.mozilla.org/Firefox/Activity_Stream

Unsure how much of an overlap there is with the work here, but maybe an
interesting initiative to look at.