On Friday 03 November 2006 22:53, taharka wrote: > Do you have an /etc/mozilla-thunderbird/global-config.js file? If so, > you should be able to set that file association there. No, I don't have this file. I just managed to get it fixed, but this solution is not really what one would expect from such an application. I would expect that if the helper can't be opened that thunderbird would ask me which application I want to use to open the attachment. I found the mimeTypes.rdf file in my thunderbird directory and it held a section for the pdf mime type. I deleted that section and when trying the open the pdf file, thunderbird behaved like I described above. Now I can chose an application and thunderbird does what I want it to do. This method is not very obvious for most users I think. regards, Marcel