I'm using PhpStorm in Ubuntu 18.041 and facing a serious problem.
I've tried several configurations (JavaScript, PHP remote) with Chrome and Firefox but none of them is starting the browser. I do not get any error message, the browser window just do not appear.
The service desk helped me to solve this issue. It seems that the installation was not completed correctly. I started PHPStorm from the shell and it lead me again trough the initial configuration. Since that is is working normally.