firefox 56.0,1 build error

FreeBSD 11.1 i386 firefox-55.0.3_2,1 < needs updating (port has 56.0,1) (linker error) -- ../../layout/build/Unified_cpp_layout_build0.o: In function `nsHostObjectURIConstructor(nsISupports*, nsID

Firefox 57.0_3,1 i386 SSE2 removal breaks build on FreeBSD 11.1 i386

Firefox 57.0_3,1 i386 SSE2 removal breaks build on FreeBSD 11.1 i386: Compiling same-file v0.1.3 Compiling smallvec v0.4.3 Compiling percent-encoding v1.0.0 Compiling matches v0.1.4 Compiling simd v0.2.0 error[E0432]: unresolved import `x86::sse2` -->