https://bugzilla.mozilla.org/show_bug.cgi?id=1232285
https://bugzilla.mozilla.org/show_bug.cgi?id=1252382

And a fix to 1232285, which introduced division of crashAfterMS
by PR_MillisecondsToInterval(1000). crashAfterMS has to be divided
by 1000 to get number of seconds.

--- a/toolkit/components/terminator/nsTerminator.cpp
+++ b/toolkit/components/terminator/nsTerminator.cpp
@@ -33,6 +33,12 @@
 #include "nsExceptionHandler.h"
 #endif
 
+#if defined(XP_WIN)
+#include <windows.h>
+#else
+#include <unistd.h>
+#endif
+
 #include "mozilla/ArrayUtils.h"
 #include "mozilla/Attributes.h"
 #include "mozilla/DebugOnly.h"
@@ -53,9 +59,6 @@
 // forcefully.
 #define ADDITIONAL_WAIT_BEFORE_CRASH_MS 3000
 
-// One second, in ticks.
-#define TICK_DURATION 1000
-
 namespace mozilla {
 
 namespace {
@@ -141,7 +144,11 @@
     // we have lost at most one second, which is much
     // more reasonable.
     //
-    PR_Sleep(TICK_DURATION);
+#if defined(XP_WIN)
+        Sleep(1000 /* ms */);
+#else
+        usleep(1000000 /* usec */);
+#endif
 
     if (gHeartbeat++ < timeToLive) {
       continue;
@@ -378,7 +385,7 @@
   }
 
   UniquePtr<Options> options(new Options());
-  options->crashAfterTicks = crashAfterMS / TICK_DURATION;
+  options->crashAfterTicks = crashAfterMS / 1000;
 
   DebugOnly<PRThread*> watchdogThread = CreateSystemThread(RunWatchdog,
                                                 options.release());