As for version updates, I normally keep the mozilla browsers at the latest version by default. Meo normally reminds me to update, but this time I was able to beat the request. :-)
Arch keeps to the latest Firefox, but Gentoo still considers 10.0.7 to be the stable version, and in the mozilla repo it was released 8/24/12 and is the latest point release of firefox 10. But after version 10, they seem to be issuing only one point release until they release a new major version.
I will ponder on how to keep stable versions of firefox around, perhaps like minefiel.