Comment 40 for bug 14576

(In reply to comment #39)
> bug 201374 "Browser functionality diminished when any "Save" dialog open"
> bug 150006 "URL non responsive when a mail dialog is open (i.e Save As dialog)"

I can provide 3 more potentially dupe candidates:
bug 184593 "modal dialogs block all browser windows"
bug 207608 "compact all local folders?" blocks loading pages i..."
bug 223491 "Autocomplete of email addresses in compose fails if a fil..."