Comment 34 for bug 239952

Before, a dialog would appear asking if I wanted to open or save the file. Saving worked fine, but opening resulted in the error mentioned in the description of this report.

Here is the (small) header from http://launchpadlibrarian.net/17537462/firefox-3.0_3.0.2%2Bbuild3%2Bnobinonly-0ubuntu1_3.0.2%2Bbuild3%2Bnobinonly-0ubuntu2.diff.gz :

HTTP/1.x 304 Not Modified
Date: Wed, 17 Sep 2008 15:22:10 GMT
Connection: Keep-Alive
Keep-Alive: timeout=15, max=100

The behaviour is the same when using a fresh firefox profile.