Triggering the Profiler
If you want to generate a trace for either a webpage or a PHP script, there are four different possibilities for achieving this.
With the Chrome extension, you only have to be logged in to the Profiler to make it work. After that, select the project that you want to generate a trace with, start the profiling, refresh the page, and then stop profiling.
To get the hash for using the GET parameter, log into the Profiler and go to the Settings section of the project you want to trace. Copy the parameter and append it to the page you want to trace.