When calling execute_script("return [ document.location ];") using selenium 2.25.0 and
Firefox 14 the function hangs.

What steps will reproduce the problem?

~$ mkdir se-bug
~$ cd se-bug
~/se-bug$ virtualenv -p /usr/bin/python2.6 --no-site-packages clean-python26-env
~/se-bug$ source clean-python26-env/bin/activate
(clean-python26-env) ~/se-bug$ easy_install selenium==2.25.0

create a test file ~/se-bug/testExeJS.py

def setUp(self):
    self.driver = webdriver.Firefox()

def test_exe_javascript(self):
    driver = self.driver
    driver.get("http://www.google.com")
    driver.execute_script("return [ document.location ];")
    print('Finished')

def tearDown(self):
    self.driver.close()

and run unittest

(clean-python26-env) ~/se-bug$ python testExeJS.py

What is the expected output? What do you see instead?

the execute_script call hangs. Instead I expect it to return as it does under selenium
2.24.0

(clean-python26-env) ~/se-bug$ rm -Rf clean-python26-env/lib/python2.6/site-packages/selenium-2.25.0-py2.6.egg
(clean-python26-env) ~/se-bug$ easy_install selenium==2.24.0
(clean-python26-env) ~/se-bug$ python testExeJS.py
Finished
.
----------------------------------------------------------------------
Ran 1 test in 6.198s

OK
(clean-python26-env) ~/se-bug$


Selenium version: 2.25.0
OS: Ubuntu 11.04
Browser: Firefox
Browser version: 14.0.1 (possible as far back as FF 10)