in Thunderbird, I've created events in my calendar, but when I get a reminder (for an event), I cannot snooze or dismiss the event--I get the message "Modification Failed"
in Thunderbird, I've created events in my calendar, but when I get a reminder (for an event), I cannot snooze or dismiss the event; I get the error code "Modification_Failed"
in Thunderbird, I've created events in my calendar, but when I get a reminder (for an event), I cannot snooze or dismiss the event; I get the error code "Modification_Failed"
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This forum is just for Firefox support, for Thunderbird support you can ask in one of these forums: