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Event Countdown version history - 3 versions

Event Countdown by JDTLC

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Event Countdown version history - 3 versions

  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 1.2

    Released Feb 2, 2026 - 26.89 KB
    Works with firefox 142.0 and later
    minor tweaks
    arranges in ascending order
    can edit
    save user data so data keeps even when extension updates
    stacks up events on same day
    countdown up to minutes when time less than 24 hours
    quit am pm format, use 24 hours system
    add all day option
    themes, settings at popup window
    pages
    bubble effect when delete

    Source code released under Mozilla Public License 2.0

    Download Firefox and get the extension
    Download file

  • Older versions

    Version 1.1

    Released Feb 2, 2026 - 26.28 KB
    Works with firefox 142.0 and later

    Source code released under Mozilla Public License 2.0

    Download file

  • Version 1.0

    Released Jan 22, 2026 - 17.71 KB
    Works with firefox 109.0 and later

    Source code released under Mozilla Public License 2.0

    Download file