Thanks Ivek! Maybe we should agree to add to the script's names some suffix like "Chrome" and "FF" or similar, so people could easier recognize which ones they use. Or, we can agree that I will put "Chrome" to all of my scripts and the default is Firefox.
To all users: there is no obstacle to put both gecko and cromedriver to proper places, when you have both Chrome and Firefox installed (on the PATH), and to use both scripts concurently!