See, this wouldn’t be a problem if they used GPL. The issue is that MPL stipulates that the modified files must be open source, while the GPL says that any derivative work must be open source.
The same problem happens with the trademarks. That is one of the reasons to rebranding the mozilla products in FOSS projects (GNU Icecat, Iceweasel, etc.)
See, this wouldn’t be a problem if they used GPL. The issue is that MPL stipulates that the modified files must be open source, while the GPL says that any derivative work must be open source.
The same problem happens with the trademarks. That is one of the reasons to rebranding the mozilla products in FOSS projects (GNU Icecat, Iceweasel, etc.)
Even with Rust.