I chose to create a new projet with existing files, using the last option, "Source files are in a local directory". Indeed I don't have a server. I chose the directory where I had previously downloaded sample code for a book I'm using.
I can open one of the first sample .htm files in WebStorm fine.
It breaks down when I want to open it in a browser. I tried Firefox and Chromium, with the same result.
The error I get: is "Connection to localhost failed"
Indeed, I don't understand why WebStorm added a port number when I don't have a server, why it doesn't pass the full path of my file, and above all why a "file://" url?
I suppose this is a simple project setup issue, but I couldn't find anything in the Preferences that would ring a bell. I could not find a single actual tutorial from JetBrain on WebStorm, where by "tutorial", I mean one oriented to the newcomer, that takes you from start to finish, step by step, holding your hand.
Thanks for your suggestions.
I am using WebStorm 8.0.4 on MacOS X 10.9.5.