Works! ... Thanks for the help :)
Looks like shutting down the browser, checking for any Chrome
processes and adding the --enable-extension-timeline-api outside of
the last " in the target box does the trick.
Speed Tracer is a tool to help you identify and fix performance problems
in your web applications. It visualizes metrics that are taken from
low level instrumentation points inside of the browser and analyzes
them as your application runs.
Not able to use spell check when posting from the text area this extension provides ... It does give a red squiggly line, but when I right click on it I'm not able to view the browser menu that lets me chose from the spelling list.
Getting the Google Chrome windows shortcut --enable-extension-timeline-api target flag to work - My Comment