When checkin in bug 2920 (delete attachment), the following note was added with it: http://lxr.mozilla.org/mozilla/source/mailnews/base/resources/locale/en-US/messenger.properties#305 http://lxr.mozilla.org/mozilla/source/mail/locales/en-US/chrome/messenger/messenger.properties#306 I realized that attachmentDeletePrefix isn't used in code currently (just search LXR for it), it actually doesn't matter if one localizes it, and so we alsway get shown the "Deleted:" in English, even in other locales, which is quite bad (esp. as the filename after it might even be in the user's language, and then only the prefix isn't. Looks like http://lxr.mozilla.org/mozilla/source/mailnews/mime/src/mimemult.cpp#292 (and #298) hardcodes that currently. Additionally, the placeholder for the deleted attachment shown in the message is hardcoded and should also be localized, this is in line 311 of mimemult.cpp from what I see. CCing bienvenu who checked in the patch for bug 2920

xref bug 286454