selenium Python 2 WebDriver log

python 脚本运行问题:
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======================================================================
ERROR: test_creat (__main__.Creat)
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Traceback (most recent call last):
  File "creat.py", line 11, in setUp
    self.driver = webdriver.Firefox()
  File "D:\Python2.6\lib\site-packages\selenium\webdriver\firefox\webdriver.py"
 line 59, in __init__
    self.binary, timeout),
  File "D:\Python2.6\lib\site-packages\selenium\webdriver\firefox\extension_con
ection.py", line 47, in __init__
    self.binary.launch_browser(self.profile)
  File "D:\Python2.6\lib\site-packages\selenium\webdriver\firefox\firefox_binar
.py", line 61, in launch_browser
    self._wait_until_connectable()
  File "D:\Python2.6\lib\site-packages\selenium\webdriver\firefox\firefox_binar
.py", line 105, in _wait_until_connectable
    self.profile.path, self._get_firefox_output()))
WebDriverException: Message: "Can't load the profile. Profile Dir: c:\\docume~1
\admini~1\\locals~1\\temp\\tmppy7eht Firefox output: *** LOG addons.xpi: startu
\r\n*** LOG addons.xpi: Skipping unavailable install location app-system-local\
\n*** LOG addons.xpi: Skipping unavailable install location app-system-share\r\
*** LOG addons.xpi: checkForChanges\r\n"

----------------------------------------------------------------------
Ran 1 test in 71.609s

FAILED (errors=1)

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go了半天没有什么头绪，看报错应该是找不到c:\\docume~1\admini~1\\locals~1\\temp\\tmppy7eht 中的firefox, 自己找了一下，也没有发现，嘻嘻，最后重新安装了一下
找到http://selenium.googlecode.com/git/docs/api/py/index.html ，测试了一下
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Example 0:
open a new Firefox browser
load the page at the given URL
from selenium import webdriver

browser = webdriver.Firefox()
browser.get('http://seleniumhq.org/')
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ok可以打开了，再次测试之前的脚本ok了。看来就是安装firefox的路径问题，问题是如果不重新安装，如何配置一下可以让selenium自己找到firefox呢？这是个问题:)
[?]如何配置一下可以让selenium自己找到firefox