I'm not sure how he does it, but in Germany, there's this guy that releases portable versions of firefox that can run simultaneously with other versions..
[link to illegal software removed by mod JTH]
Would it be possible/simple for future versions here to be tweaked to do likewise??
I would like to run portable 3.6.8 alongside portable version 4 for testing purposes..
or alternatively, is there something i could tweak in your versions, to allow both versions to run side by side???