Solved After update of icu problems to compile firefox and webkit-gtk2

The problem with www/firefox
error: the listed checksum of `/ram/usr/ports/www/firefox/work/firefox-56.0.2/third_party/rust/simd/src/` has changed:
expected: 62f4e7e0fefb52ad190d0f2191bc435ac4deab3f2bc70dc427f2a7f9ccb7856e
actual:   6b2ac901a48937bc8595c0151c18a79be0f965b3a6cebea89bc47418bf6f4dab

directory sources are not intended to be edited, if modifications are required then it is recommended that [replace] is used with a forked copy of the source
gmake[7]: *** [/ram/usr/ports/www/firefox/work/firefox-56.0.2/config/ force-cargo-library-build] Error 101
gmake[7]: Leaving directory '/ram/usr/ports/www/firefox/work/firefox-56.0.2/obj-x86_64-unknown-freebsd10.3/toolkit/library/rust'
gmake[6]: *** [/ram/usr/ports/www/firefox/work/firefox-56.0.2/config/ toolkit/library/rust/target] Error 2

PR 223570

the problem with www/webkit-gtk2

DerivedSources/WebCore/JSDOMWindow.cpp:177:10: fatal error:
     'JSInternalSettingsGenerated.h' file not found
#include "JSInternalSettingsGenerated.h"

PR 223567

Webkit effects midori, so I have the problem if I close firefox I have no browser
Now I got an other error with ww/firefox:
 Compiling simd v0.2.0
error[E0432]: unresolved import `x86::sse2`
  --> /ram/usr/ports/www/firefox/work/firefox-56.0.2/third_party/rust/simd/src/
17 | use x86::sse2::common

   |          ^^^^ Could not find `sse2` in `x86

I guess this is a rust error.