Invoking Firefox with profile manager option upon launch to select the desired profile to be loaded:
firefox.exe –profilemanager
When you have to troubleshoot performance issues with Firefox, you can launch FF in safe mode using below option:
firefox.exe -safe-mode
-safe-mode
Launches the application with all extensions disabled, for that launch only. (Extensions are not loaded, but are not permanently disabled in the Extension Manager datasource).
When you have to investigate any of the FF behavior issues, you can use the debug option as shown below:
firefox.exe -console
-console: Starts the application with a debugging console.
For further list of FF command line options refer to http://kb.mozillazine.org/Command_line_arguments
