When clicking on an attachment link, the attachment isn't shown in some browsers and you are requested to download the attachment with the path of the request as the filename. The Content-Disposition header isn't set when viewing an attachment for bug reports. I checked other bugzilla sites and they do set the content disposition and behave as you would expect. I also downloaded version 2.17.3 and looked at the code in attachment.cgi, specifically the view function and it also sets the header. Outputting a header like the following when someone requests an attachment would fix the problem. Content-Disposition: inline: filename=$filename See line 381 of attachment.cgi in version 2.17.3 of bugzilla.
There was a dup of this bug, but I do not have the bug # handy. The long and the short of it is that this is fixed in the new gentoo bugzilla, which is set to roll out in the next couple of weeks. //zhen