Thank you, Peter. I have the gtk interface installed as well as (-ia and -ik), so there is no problem there.  It is the gtk interface that displays normally when playing a midi file from my home folder.  Also, if accessing a midi file from the web via Firefox, the first time it is accessed, there is no GUI but the second and subsequent times there is a GUI and the file can be terminated. I will try your suggestion but need clarification on how to find the "helper" files in Firefox. Cheers, Andre <div>On 07/09/07, Peter Garrett <<a href="mailto:peter.garrett@optusnet.com.au">peter.garrett@optusnet.com.au</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> On Thu, Sep 06, 2007 at 04:53:51PM +1000, Andre Mangan wrote: > Hello to all Ubuntu users, > > For general information: > > After much research, testing and fiddling about, I have added System Monitor > to my top panel and in order to turn off any midi file accessed via Firefox > that loads without the TiMidity GUI, I can access the icon for the System > Monitor with ease and elect to stop (or kill) the process (yes, I know that > I could do it via the command line too). > > I knew it was going to be easy, it just took a while to get there.. Apologies if this turns out to be a duplicate post - I seem to be having some email issues here with Sylpheed. Trying again with Mutt... I thought this was an interesting problem, so I tried a few things... I use the gtk interface for timidity . which is called as timidity -ig If you don't have it, install " timidity-interfaces-extra' from the universe repo. Now, this was a bit of an adventure *cough* ... I tried calling timidity from a little wrapper script thus: #!/bin/bash timidity -ig "$@" This was ... interesting...  It not only refused to run, it shot the CPU through the roof so badly that the whole system was wedged - I couldn't even ssh in to kill it. After several attempts at variations, I hit on the problem, which is that you need the * full path to timidity * for this to work in a script ,,, First time I've come across something that requires the full path hard-coded like this, but there you are... So, here is how to get Firefox to give you a gui when you play a midi on a website: put this somewhere ( doesn't matter much where, I suggest ~/bin) #---------------------------------------------------------------------# #!/bin/bash # Wrapper for timidity with firefox  - $HOME/bin/timidity-wrapper # Uses the gtk interface from timidity-interfaces-extra # You can use the athena version with -ia # You *must* give the full /usr/bin/timidity path as below, or it will # freeze everything ( I'm not kidding - I found out the hard way) /usr/bin/timidity -ig  "$@" #---------------------------------------------------------------------# I put this in /home/peter/bin/timidity-wrapper , and gave that path for timidity to Firefox in the dialogue that pops up in FF for "helper" apps . You might need to alter yours if you have set "Always do... " Of course the "script" needs to be executable chmod u+x ~/bin/timidity-wrapper    ( if in ~/bin , of course ) This appears to work. Tested at <a href="http://www.trachtman.org/ragtime/">http://www.trachtman.org/ragtime/</a> I think this is not a Firefox bug - I think it's a problem with timidity's way of finding the PATH, or perhaps the way it is called ( don't know). Perhaps the galeon devs etc. call it the right way ? (In which case I suppose it could be seen as a Firefox bug, although hard coding paths doesn't seem like something you should need to do ? ) . Peter -- ubuntu-au mailing list <a href="mailto:ubuntu-au@lists.ubuntu.com">ubuntu-au@lists.ubuntu.com</a> <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-au"> https://lists.ubuntu.com/mailman/listinfo/ubuntu-au</a> </blockquote></div> -- <a href="mailto:andremangan@gmail.com">andremangan@gmail.com</a>