Override action of "Downloads" button on about:home page
(#10)
Rename label for overrideDownloadsCommand* preferences to better match real behavior
+ reorder options
(#10)
Try show real hotkey for downloads
(#10)
See http://mxr.mozilla.org/mozilla-central/source/browser/base/content/browser.xul
http://mxr.mozilla.org/mozilla-central/source/browser/base/content/browser-sets.inc
#ifdef XP_GNOME
    <key id="key_search2" key="&searchFocusUnix.commandkey;" command="Tools:Search" modifiers="accel"/>
    <key id="key_openDownloads" key="&downloadsUnix.commandkey;" command="Tools:Downloads" modifiers="accel,shift"/>
#else
    <key id="key_openDownloads" key="&downloads.commandkey;" command="Tools:Downloads" modifiers="accel"/>
#endif