Created attachment 8616475 [details] see.png User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0 Build ID: 20150515071002 Steps to reproduce: 1) Download a WebM file without a question mark in the filename (any, to see the difference) -> for example, the "Chemise" one provided by the Dropbox link 2) Download a WebM file with a question mark in the filename -> for example, the "Charles" one provided by the Dropbox link WebM files: https://www.dropbox.com/sh/x7h3lyo1rncwqcl/AABPzzEtIkY489xUB6FEz1Kia?dl=0 Actual results: In the downloads window / tab / overlay, there is a WebM icon (video icon) for the file without question mark. However, there is none (icon: unknown) for the one with a question mark. This is observed in Linux and can probably be reproduced on all operating systems that Firefox runs on. Expected results: The icon for both files should have been the video icon.
My real user agent is Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0 (I had override user agent on)
(In reply to Geoffrey Db from comment #0) > This is observed in Linux and can probably be reproduced on all operating systems that Firefox runs on. ? is an illegal character in file names on Windows. It gets replaced with _ when downloading.
I see. Still a Linux problem though.