Including RPM's for older versions of firefox (and other applications)

[John Reiser]

Rodd Clarkson wrote:
> Can we do better, by offering installs of older browsers that can be run
> in parallel to make it easier to test browser based development?

If the .rpm is relocatable, then there is almost nothing to do:
get the other .rpm and install it in a non-default place.
If the .rpm is not relocatable, then there is almost nothing
that _can_ be done.  From the beginning the upstream project and
the packager must design for multiple concurrent installations and
concurrent yet separate dynamic invocations, and _test_ them.

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