Bug 1086958: re-add default browser strings from bug 951627

--HG--
extra : rebase_source : 082afdd90f2620c596523e4d0b16aab3a5d8296e

browser/locales/en-US/chrome/browser/shellservice.properties

@@ -17,6 +17,12 @@ setDefaultBrowserNotNow.accesskey  = N
 setDefaultBrowserNever.label       = Don't ask me again
 setDefaultBrowserNever.accesskey   = D
 
+# LOCALIZATION NOTE (setDefaultBrowserTitle, setDefaultBrowserMessage, setDefaultBrowserDontAsk):
+# These strings are used as an alternative to the ones above, in a modal dialog.
+# %S will be replaced by brandShortName
+setDefaultBrowserTitle=Default Browser
+setDefaultBrowserMessage=%S is not currently set as your default browser. Would you like to make it your default browser?
+setDefaultBrowserDontAsk=Always perform this check when starting %S.
 
 desktopBackgroundLeafNameWin=Desktop Background.bmp
 DesktopBackgroundDownloading=Saving Picture…