User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5b) Gecko/20030905 Firebird/0.6.1+ Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5b) Gecko/20030905 Firebird/0.6.1+ The demo URL should return the following headers: Content-Type: application/x-tar Content-Encoding: application/x-gzip Content-Disposition: attachment; filename=muziekquiz-2003-37.tar.gz When I try to open the URL, it automatically prompts to download muziekquiz-2003-37.tar.gz_.tar_ I can understand how it would base the extension on the content type, and that content encoding is used for compression, but it's not like it should decompress the attachment and save it as an uncompressed tarball, right? Reproducible: Always Steps to Reproduce: 1. Open URL 2. Look at default filename for download Actual Results: Got .tar.gz.tar Expected Results: Suggest .tar.gz

Unfortunately, we have to change the filename in some cases to avoid some security bugs in the Windows operating system, and we're a little over-zealous about it... Bug 65827 will likely not help this case, but it may. If it does not, this case is a duplicate of the "do not change extensions when saving" bug, somewhere in the "file handling" component.

Allrighty then... I switched to regular zip for now, so don't expect the demo URL to work any longer.

*** This bug has been marked as a duplicate of 144334 ***