thunderbird and quote colors

[Yuri Pankov]

If any of you are using Thunderbird on Mac, you see that different 
quoting levels have different colors (out of the box!) and that makes it 
much easier to read.  Now on FreeBSD (and Windows, and Linux, I guess) 
there's no such feature.  There was a QuoteColors addon, but it's last 
updated about 10 years ago, and no longer works, even with hacks to 
install it with newer TB versions.

So the question is if anyone has any idea on how to enable in FreeBSD's 
thunderbird what comes with Mac version?