Bug 256635

N-th tab shortcuts should use Alt-1 to Alt-9 rather than Ctrl-1 to Ctrl-9
Linux only.
r=mconnor a=asa

browser/base/content/browser.js

@@ -747,6 +747,8 @@ function ctrlNumberTabSelection(event)
 
 #ifdef XP_MACOSX
   if (!event.metaKey)
+#elifdef XP_UNIX
+  if (!event.altKey)
 #else
   if (!event.ctrlKey)
 #endif