It is possible that some sites decide that Firefox 5 is too old. To avoid
using the newest and greatest, let's settle on an "Extended Support Release"
of Firefox, which is less likely to have sites complaining about.
Signed-off-by: Rogério Brito <rbrito@ime.usp.br>
let's elaborate the decision: Python 2.5 is a 6 years old release
and "under the current release policy, no security issues in Python
2.5 will be fixed anymore" (!!); also, it doesn't support the new
zipfile distribution format.
