Temporary folder for Firefox and Thunderbird on OS X

In February last year I bought my first MacBook with OS X 10.4 alias Tiger installed and I was happy to say “Hello” to the Apple folks. Ever since it was a bit of work and I had to learn a lot until everything worked like expected. But there is still one thing which bugs me when running Firefox or Thunderbird on a fresh OS X installation. Both applications don’t use a reasonable temporary folder. Instead files which are opened by helper applications are stored under ~/Desktop or ~/Download and will not be removed sometimes after Firefox or Thunderbird are closed. This results in a really cluttered desktop or download folder. All the following steps have to be done because there is no way to specify the temporary folder from within Firefox and Thunderbird. Both lack an UI or a hidden preference to change this folder. I cannot say when this will be changed, but there is a reported bug about this issue. But lets go on… Continue reading