On top of all it's just a simple thing to do if they wanted to (I'm guessing), it's basic accessibility, your eyes are what you use the most while browsing.

I have seen no bug reports of this on https://bugzilla.mozilla.org, that's the only way they will probably do something. I've submitted my opinion on ´Offer us ideas on how to make Firefox better´ but who knows if somebody actually reads that. Mozilla has very very poor infrastructure for feedback IMO.