diff --git a/mozilla/toolkit/xre/nsAppRunner.cpp b/mozilla/toolkit/xre/nsAppRunner.cpp
index 8a49585b5f8..214e906567f 100644
--- a/mozilla/toolkit/xre/nsAppRunner.cpp
+++ b/mozilla/toolkit/xre/nsAppRunner.cpp
@@ -1075,6 +1075,7 @@ XRE_GetBinaryPath(const char* argv0, nsILocalFile* *aResult)
 #elif defined(XP_UNIX)
   struct stat fileStat;
   char exePath[MAXPATHLEN];
+  char tmpPath[MAXPATHLEN];
 
   rv = NS_ERROR_FAILURE;
 
@@ -1117,8 +1118,8 @@ XRE_GetBinaryPath(const char* argv0, nsILocalFile* *aResult)
     char *newStr = pathdup;
     char *token;
     while ( (token = nsCRT::strtok(newStr, ":", &newStr)) ) {
-      sprintf(exePath, "%s/%s", token, argv0);
-      if (stat(exePath, &fileStat) == 0) {
+      sprintf(tmpPath, "%s/%s", token, argv0);
+      if (realpath(tmpPath, exePath) && stat(exePath, &fileStat) == 0) {
         found = PR_TRUE;
         break;
       }
diff --git a/mozilla/xulrunner/stub/nsXULStub.cpp b/mozilla/xulrunner/stub/nsXULStub.cpp
index d5192fba36f..db02df93556 100644
--- a/mozilla/xulrunner/stub/nsXULStub.cpp
+++ b/mozilla/xulrunner/stub/nsXULStub.cpp
@@ -66,6 +66,7 @@ main(int argc, char **argv)
   char *lastSlash;
 
   char iniPath[MAXPATHLEN];
+  char tmpPath[MAXPATHLEN];
 
 #ifdef XP_WIN
   if (!::GetModuleFileName(NULL, iniPath, sizeof(iniPath)))
@@ -96,11 +97,12 @@ main(int argc, char **argv)
     PRBool found = PR_FALSE;
     char *token = strtok(pathdup, ":");
     while (token) {
-      sprintf(iniPath, "%s/%s", token, argv[0]);
-      if (stat(iniPath, &fileStat) == 0) {
+      sprintf(tmpPath, "%s/%s", token, argv[0]);
+      if (realpath(tmpPath, iniPath) && stat(iniPath, &fileStat) == 0) {
         found = PR_TRUE;
         break;
       }
+      token = strtok(NULL, ":");
     }
     free (pathdup);
     if (!found)