Anyway.. to get back on the topic (again) i still think (even more
than when i started this) that firefox middle click behavior should be
the same in windows and linux. I will fill a bug report about this on
mozilla as well and hope that there replies are mature unlike (almost)
everyone here.
Just found that it's a already requested chance:
https://bugzilla.mozilla.org/show_bug.cgi?id=415665
And from the comments i read there almost all seem in favor of making
the change!