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-rw-r--r--modules/libpref/init/all.js8
1 files changed, 7 insertions, 1 deletions
diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 766c00d39..855488850 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -1265,8 +1265,14 @@ pref("javascript.options.unboxed_objects", false);
pref("javascript.options.baselinejit", true);
pref("javascript.options.ion", true);
pref("javascript.options.asmjs", true);
-pref("javascript.options.wasm", false);
+pref("javascript.options.wasm", true);
+// wasm jit crashes in 32bit builds because of 64bit casts so
+// only enable it by default for 64bit builds
+#ifdef HAVE_64BIT_BUILD
+pref("javascript.options.wasm_baselinejit", true);
+#else
pref("javascript.options.wasm_baselinejit", false);
+#endif
pref("javascript.options.native_regexp", true);
pref("javascript.options.parallel_parsing", true);
// ayncstack is used for debugging promises in devtools.