Since the version of Selenium that we're currently using with PHPUnit does not appear to be compatible with versions of Firefox beyond version 42, we need to be able to have our tests check the version of the installed Firefox in case someone upgraded it and have it let us know that that's the issue as to why the tests failed.
Does anyone know how we can get the browser version? (Note: This is not a duplicate of this question, as we have do do it within the PHPUnit framework, and that question is about a Python solution that works directly with Selenium.)