Firefox just freezes.I can't open it and I can't delete it.I have to go into safe mode and delete several folders after I enter the search term Mozilla.If I enter fire fox it doesn't solve the problem.Only when I enter Mozilla can I delete folders which will allow me to delete Firefox,so that I can reinstall it.It will then work until I add a theme. the process starts over again.How can I resolve this.I've used Firefox forever and never had this problem.Thank You