== Assumptions ==
* We want to EOL Firefox 3.5 as quickly as possible
* We want users on the latest (Firefox 4 as of this time) but will settle for users being on the oldest supported (Firefox 3.6.x as of this time)
* We want users to opt into the latest version if at all possible
* We would rather make the decision for users by automatically upgrading them versus leaving them vulnerable and unsupported