--- a/testing/xpcshell/remotexpcshelltests.py
+++ b/testing/xpcshell/remotexpcshelltests.py
@@ -219,24 +219,18 @@ class XPCShellRemote(xpcshell.XPCShellTe
         return self.profileDir
 
     def logCommand(self, name, completeCmd, testdir):
         self.log.info("TEST-INFO | %s | full command: %r" % (name, completeCmd))
         self.log.info("TEST-INFO | %s | current directory: %r" % (name, self.remoteHere))
         self.log.info("TEST-INFO | %s | environment: %s" % (name, self.env))
 
     def setupLeakLogging(self):
-        # Leak logging disabled on Android because it makes the command
-        # line too long: bug 752126
-
-        # filename = "leaks"
-        # leakLogFile = self.remoteJoin(self.profileDir, filename)
-        # self.env["XPCOM_MEM_LEAK_LOG"] = leakLogFile
-        leakLogFile = ""
-        return leakLogFile
+        self.env["XPCOM_MEM_LEAK_LOG"] = self.remoteJoin(self.profileDir, "leaks.log")
+        return self.env["XPCOM_MEM_LEAK_LOG"]
 
     def setLD_LIBRARY_PATH(self, env):
         env["LD_LIBRARY_PATH"]=self.remoteBinDir
 
     def pushWrapper(self):
         # Rather than executing xpcshell directly, this wrapper script is
         # used. By setting environment variables and the cwd in the script,
         # the length of the per-test command line is shortened. This is
@@ -255,16 +249,17 @@ class XPCShellRemote(xpcshell.XPCShellTe
         f.close()
         remoteWrapper = self.remoteJoin(self.remoteBinDir, "xpcw")
         self.device.pushFile(localWrapper, remoteWrapper)
         os.remove(localWrapper)
         self.device.chmodDir(self.remoteBinDir)
 
     def buildEnvironment(self):
         self.env = {}
+        self.buildCoreEnvironment()
         self.setLD_LIBRARY_PATH(self.env)
         self.env["MOZ_LINKER_CACHE"]=self.remoteBinDir
         if self.options.localAPK and self.appRoot:
           self.env["GRE_HOME"]=self.appRoot
         self.env["XPCSHELL_TEST_PROFILE_DIR"]=self.profileDir
         self.env["TMPDIR"]=self.remoteTmpDir
         self.env["HOME"]=self.profileDir
         self.pushWrapper()

--- a/testing/xpcshell/runxpcshelltests.py
+++ b/testing/xpcshell/runxpcshelltests.py
@@ -116,30 +116,35 @@ class XPCShellTests(object):
     if self.xrePath is None:
       self.xrePath = os.path.dirname(self.xpcshell)
     else:
       self.xrePath = os.path.abspath(self.xrePath)
 
     if self.mozInfo is None:
       self.mozInfo = os.path.join(self.testharnessdir, "mozinfo.json")
 
-  def buildEnvironment(self):
+  def buildCoreEnvironment(self):
     """
-      Create and returns a dictionary of self.env to include all the appropriate env variables and values.
-      On a remote system, we overload this to set different values and are missing things like os.environ and PATH.
+      Add environment variables likely to be used across all platforms, including remote systems.
     """
-    self.env = dict(os.environ)
     # Make assertions fatal
     self.env["XPCOM_DEBUG_BREAK"] = "stack-and-abort"
     # Don't launch the crash reporter client
     self.env["MOZ_CRASHREPORTER_NO_REPORT"] = "1"
     # Capturing backtraces is very slow on some platforms, and it's
     # disabled by automation.py too
     self.env["NS_TRACE_MALLOC_DISABLE_STACKS"] = "1"
 
+  def buildEnvironment(self):
+    """
+      Create and returns a dictionary of self.env to include all the appropriate env variables and values.
+      On a remote system, we overload this to set different values and are missing things like os.environ and PATH.
+    """
+    self.env = dict(os.environ)
+    self.buildCoreEnvironment()
     if sys.platform == 'win32':
       self.env["PATH"] = self.env["PATH"] + ";" + self.xrePath
     elif sys.platform in ('os2emx', 'os2knix'):
       os.environ["BEGINLIBPATH"] = self.xrePath + ";" + self.env["BEGINLIBPATH"]
       os.environ["LIBPATHSTRICT"] = "T"
     elif sys.platform == 'osx' or sys.platform == "darwin":
       self.env["DYLD_LIBRARY_PATH"] = self.xrePath
     else: # unix or linux?