Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

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"

  • 1 reply
  • 24 have this problem
  • 1 view
  • Last reply by TonyE

more options

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"

All Replies (1)

more options

This forum is just for Firefox support, for Thunderbird support you can ask in one of these forums: