1281420 - [Selenium 2.53] The browser appears to have exited before we could connect.

Status: RESOLVED DUPLICATE of bug 1278605

(Remote Protocol :: Marionette, defect, P2)

Description

[Kedar]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.84 Safari/537.36

Steps to reproduce:

Steps to reproduce
- Installed Firefox version 47.0 (latest update)
- Installed Selenium version 2.53
- Wrote a demo script in python using Selenium. Can be found here: https://gist.github.com/talktokets/d02b50ebec3b56cfae011e52a3fab576
- Ran the script 


Actual results:

When I ran the above written script, the firefox browser launched first but then immediately it quits abnormally with the following message in the console: 

selenium.common.exceptions.WebDriverException: Message: The browser appears to have exited before we could connect. If you specified a log_file in the FirefoxBinary constructor, check it for details.


Expected results:

The browser should be opened successfully and it should run the script and give the output.

Have also filed the issue for Selenium as well.