$ python runtestsremote.py --help
reconnecting socket
unable to connect socket
Usage: Usage instructions for runtests.py.
All arguments are optional.
If --chrome is specified, chrome tests will be run instead of web content tests.

If --browser-chrome is specified, browser-chrome tests will be run instead of we
b content tests.
See  for details on the logg
ing levels.

Options:
 -h, --help            show this help message and exit
 --xre-path=XREPATH    absolute path to directory containing XRE (probably
                       xulrunner)
 --symbols-path=SYMBOLSPATH
                       absolute path to directory containing breakpad
                       symbols, or the URL of a zip file containing symbols
 --debugger=DEBUGGER   use the given debugger to launch the application
 --debugger-args=DEBUGGERARGS
                       pass the given args to the debugger _before_ the
                       application on the command line
 --debugger-interactive
                       prevents the test harness from redirecting stdout and
                       stderr for interactive debuggers
 --setpref=PREF=VALUE  defines an extra user preference
 --close-when-done     close the application when tests are done running
 --appname=APP         absolute path to application, overriding default
 --utility-path=UTILITYPATH
                       absolute path to directory containing utility programs
                       (xpcshell, ssltunnel, certutil)
 --certificate-path=CERTPATH
                       absolute path to directory containing certificate
                       store to use testing profile
 --log-file=FILE       file to which logging occurs
 --autorun             start running tests when the application starts
 --timeout=TIMEOUT     per-test timeout in seconds
 --total-chunks=TOTALCHUNKS
                       how many chunks to split the tests up into
 --this-chunk=THISCHUNK
                       which chunk to run
 --chunk-by-dir=CHUNKBYDIR
                       group tests together in the same chunk that are in the
                       same top chunkByDir directories
 --shuffle             randomize test order
 --console-level=LEVEL
                       one of DEBUG, INFO, WARNING, ERROR, FATAL to determine
                       the level of console logging
 --file-level=LEVEL    one of DEBUG, INFO, WARNING, ERROR, FATAL to determine
                       the level of file logging if a file has been
                       specified, defaulting to INFO
 --chrome              run chrome Mochitests
 --test-path=TESTPATH  start in the given directory's tests
 --browser-chrome      run browser chrome Mochitests
 --a11y                run accessibility Mochitests
 --setenv=NAME=VALUE   sets the given variable in the application's
                       environment
 --browser-arg=ARG     provides an argument to the test application
 --leak-threshold=THRESHOLD
                       fail if the number of bytes leaked through refcounted
                       objects (or bytes in classes with MOZ_COUNT_CTOR and
                       MOZ_COUNT_DTOR) is greater than the given number
 --fatal-assertions    abort testing whenever an assertion is hit (requires a
                       debug build to be effective)
 --extra-profile-file=EXTRAPROFILEFILES
                       copy specified files/dirs to testing profile
 --profile-path=PROFILEPATH
                       Directory where the profile will be stored.This
                       directory will be deleted after the tests are finished
 --use-vmware-recording
                       enables recording while the application is running
                       inside a VMware Workstation 7.0 or later VM
 --remote-app-path=REMOTEAPPPATH
                       Path to remote executable relative to device root
                       using only forward slashes. Either this or app must be
                       specified but not both
 --deviceIP=DEVICEIP   ip address of remote device to test
 --devicePort=DEVICEPORT
                       port of remote device to test
 --remote-product-name=REMOTEPRODUCTNAME
                       The executable's name of remote product to test -
                       either fennec or firefox, defaults to fennec
 --remote-logfile=REMOTELOGFILE
                       Name of log file on the device relative to the device
                       root.  PLEASE ONLY USE A FILENAME.
 --remote-webserver=REMOTEWEBSERVER
                       ip address where the remote web server is hosted at
 --http-port=HTTPPORT  ip address where the remote web server is hosted at
 --ssl-port=SSLPORT    ip address where the remote web server is hosted at