I don't know about the others but Mull does this as part of privacy resist fingerprinting. You can change it in about:config, rfp false iirc.
There was some brief mention the default might change. I don't think that happened though.
I don't know about the others but Mull does this as part of privacy resist fingerprinting. You can change it in about:config, rfp false iirc.
There was some brief mention the default might change. I don't think that happened though.