After the Firefox self-upgraded to version 47, Selenium stopped working.
I followed the Javascript (Node.js) steps suggested by Mozilla regarding the Marionette driver, but the console says that it can't find Firefox on my current system, however the path to the browser is fine and standard.
The error is "Could not locate Firefox on the current system"
at C:\Users\\node\_modules\selenium-webdriver\firefox\binary.js:115:11

If it matters, I use WebdriverJS.