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Which version of Firefox is compatible with Selenium?

Firefox Troubleshooting
Bezaile replied
Bezaile
Bezaile

I'm trying to run automated Python tests from the cmd prompt. Every time I try, I get an error message stating "Failed to start new browser session: Error while launching browser." I've updated everything - Java version 1.7.0_25, selenium library 2.9.1... I've installed older versions of Firefox back to 14.0, and nothing works. I need some help, and I don't understand any of the solutions I find online. I don't write the tests myself - we outsource to a programmer who writes everything to Github, I pull the files and run the tests.

I got a new computer - went from Windows XP to 7. Everything worked on the old computer, but I couldn't upgrade from Firefox 3.6 without the tests failing. Nothing works on the new computer, and I don't believe I should have to revert back to version 3.6 to get the tests to run.

Any help would be appreciated.

Thank you.

I'm trying to run automated Python tests from the cmd prompt. Every time I try, I get an error message stating "Failed to start new browser session: Error while launching browser." I've updated everything - Java version 1.7.0_25, selenium library 2.9.1... I've installed older versions of Firefox back to 14.0, and nothing works. I need some help, and I don't understand any of the solutions I find online. I don't write the tests myself - we outsource to a programmer who writes everything to Github, I pull the files and run the tests. I got a new computer - went from Windows XP to 7. Everything worked on the old computer, but I couldn't upgrade from Firefox 3.6 without the tests failing. Nothing works on the new computer, and I don't believe I should have to revert back to version 3.6 to get the tests to run. Any help would be appreciated. Thank you.

All Replies (2)

Jonathan Pereira
Jonathan Pereira

Either try updating your Java libraries or add the web driver for selenium

Bezaile
Bezaile Question owner

Chosen Solution

I already have the Selenium web driver installed, and the most recent version of java. I had to go back to 3.6, and worked my way up from there. Version 12.0 is the most recent version that works for me.