In the Awesomescreen, the ordering of the "Top sites" never seems to change. In particular, no matter how many times I scroll down and choose one site, it never moves up, and sites that I do not revisit never move down. I have Sync set up on this installation, but the highly-ranked sites are also not often-visited on any other linked Firefox. This is Android 2.3.4, HTC Sensation.
This is because we use a poor algorithm for recency.
this is actually just not true. I reloaded facebook enough to get it to the top of the list in my testing of another bug.
If you have a rich history the home screen and awesome screen is very static which is what bug 704977 is going to fix but w/e.