"Its trademark is abusive (if I remember well, you are not allowed to sell
Firefox without first changing its name/logo)."
This actually goes beyond that and actually infringes on freedom #2 - The
freedom to make exact copies. The ability to make exact copies needs to be
available on both a commercial and non-commercial basis. "Mozilla's trademark
policy serves to limit Freedom 2 (the freedom to make exact copies) to gratis
distribution only, making the software nonfree."
Says https://libreplanet.org/wiki/Libre_Browsers_Libre_Formats which links to
the FSF's decision at
http://lists.nongnu.org/archive/html/gnu-linux-libre/2011-08/msg00014.html
And I wrote on it: https://jxself.org/mozilla_trademark.shtml