Testing HTML5 Games
Recent security updates to Firefox mean that it is no longer possible to test HTML5 games locally. In order to test your HTML5 games, you’ll first need to Build your Game and select HTML5 as the build option. Then, you’ll need to upload the generated files to a web server.
We advise against setting up a local server, as this can be complicated, or using command line tools like emrun, which require a lot of dependencies – solutions to which could potentially expose your computer.