diff -up firefox-134.0.1/toolkit/moz.configure.wasi firefox-134.0.1/toolkit/moz.configure
--- firefox-134.0.1/toolkit/moz.configure.wasi	2025-01-13 14:46:04.000000000 +0100
+++ firefox-134.0.1/toolkit/moz.configure	2025-01-17 08:39:38.870092763 +0100
@@ -2767,7 +2776,7 @@ with only_when(requires_wasm_sandboxing
     def wasi_sysroot_flags(wasi_sysroot):
         if wasi_sysroot:
             log.info("Using wasi sysroot in %s", wasi_sysroot)
-            return ["--sysroot=%s" % wasi_sysroot]
+            return ["--sysroot=%s" % wasi_sysroot, "-nodefaultlibs",  "-lc", "-lwasi-emulated-process-clocks", "-lc++", "-lc++abi", "LIBCLANG_RT_PLACEHOLDER"]
         return []
 
     set_config("WASI_SYSROOT", wasi_sysroot)
diff -up firefox-134.0.1/wasi-sdk-25/cmake/wasi-sdk-toolchain.cmake.wasi firefox-134.0.1/wasi-sdk-25/cmake/wasi-sdk-toolchain.cmake
--- firefox-134.0.1/wasi-sdk-25/cmake/wasi-sdk-toolchain.cmake.wasi	2025-01-17 08:40:23.004159900 +0100
+++ firefox-134.0.1/wasi-sdk-25/cmake/wasi-sdk-toolchain.cmake	2025-01-17 08:40:35.478178790 +0100
@@ -126,7 +126,7 @@ endif()
 add_custom_command(
   OUTPUT ${wasm_component_ld}
   COMMAND
-    cargo install --root ${wasm_component_ld_root} ${rust_target_flag}
+    cargo install --offline --root ${wasm_component_ld_root} ${rust_target_flag}
       wasm-component-ld@${wasm_component_ld_version}
   COMMAND
     cmake -E make_directory ${wasi_tmp_install}/bin
diff -up firefox-134.0.2/wasi-sdk-25/version.py.wasi firefox-134.0.2/wasi-sdk-25/version.py
--- firefox-134.0.2/wasi-sdk-25/version.py.wasi	2025-01-16 08:03:26.042654800 +0100
+++ firefox-134.0.2/wasi-sdk-25/version.py	2025-01-22 14:08:34.563909971 +0100
@@ -60,6 +60,7 @@ assert parse_git_version(
 
 
 def git_version():
+    return 25
     version = exec(['git', 'describe', '--long', '--candidates=999',
                     '--match=wasi-sdk-*', '--dirty=+m', f'--abbrev={GIT_REF_LEN}'],
                     os.path.dirname(sys.argv[0]))