When I try to open pdfs in Firefox, it asks me whether to open it or save it. For the open it option it always shows Adobe Acrobat by default even when I changed it to Firefox many times and also changed the option to open pdfs in Firefox under options->General->Applications->Portable Document Format to Firefox. Yet it always shows adobe acrobat as default. And 'Do this automatically for files like this from now on' does not work. Even after checking the box for saving the file or opening the file in firefox, it always asks to what to do when I am trying to open a PDF in Firefox. These glitches with pdfs appear to have come lately in recent updates. Please fix this. It is annoying.