Under "When new messages arrive:", the "Show an alert" checkbox is hidden on Mac. Now that bug 728385 is fixed, the checkbox should be made visible on Mac. It's #ifndef mac here: http://hg.mozilla.org/comm-central/annotate/default/mail/components/preferences/general.xul#l61 I used about:config to set mail.biff.show_alert to false and it worked. So I think it just needs to be moved out of the ifndef block. (It might be sensible for it to be visible based on whether Growl / Notification Center are installed.)
(I noticed this soon after updating from Thunderbird 17 to Thunderbird Beta 22).
I don't know if this would equally apply to Thunderbird, but SeaMonkey is using the following to hide the alert-related elements in their pref-notifications.js: > xxx.hidden = !("@mozilla.org/alerts-service;1" in Components.classes); That was introduced with bug 158711 and is still in the current trunk code.
A patch is already awaiting review in bug 876497.
Status: NEW → RESOLVED
Last Resolved: 5 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 876497
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