Dragging a file into the Zotero tab (but not pane) in Firefox 3.6 causes Firefox to try to load the file

[simon]

I would guess that Firefox is trying to interpret the drag event as is a page were dragged on the browser window. This doesn't affect the Zotero tab, doesn't affect Firefox 4, and may or may not be related to ​http://forums.zotero.org/discussion/16520/zotero-tab-closes-byitself-and-open-a-weired-webpage-report-id-359194012/, which I still can't reproduce.