User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 1.1.4322; .NET CLR 3.5.30729; .NET CLR 3.0.30618) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.1) Gecko/20090624 Firefox/3.5 (.NET CLR 3.5.30729) After trying to download files with 20 links , I have discovered that the download folder (set from the settings) did not exist anymore. I mention it is tipically, as the folder was on an external HDD, and with some clicks, the labels of the disks have changed. So, the proposition: If the download folder is not writable, why don't you download the files in the default folder (which in Vista is c:/Users/[username]) and notify the user about the problem? Why should the user look at the monitor and think that FF crashed? Reproducible: Always Actual Results: On click on the download link, the download pop-up does not shouw up and no message is displayed. Expected Results: At least a message to be displayed.