# GCal Duplicate & Duration

> Lets you quickly duplicate Google Calendar events and shows their total duration in event cards.

Canonical page: [https://chrome-stats.com/d/gcal-duplicate-duration](https://chrome-stats.com/d/gcal-duplicate-duration)

## Overview

- **ID:** `gcal-duplicate-duration`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Joppe Avermaete
- **Category:** appearance
- **Daily users:** 93
- **Weekly downloads:** 5
- **Rating:** 5.00 / 5 (3 ratings)
- **Version:** 1.3
- **Last updated:** 2025-09-03
- **First published:** 2025-07-17
- **Size:** 19 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/gcal-duplicate-duration/)

## Description

<strong>Google Calendar Duplicate &amp; Duration Extension</strong>

A browser extension for Google Calendar that lets you duplicate events using a button or keyboard shortcut, and shows their total duration on event cards.

Default shortcut to duplicate an event: <code>Shift + Click</code>.

<strong>Features</strong>
    -  <strong>Duplicate Button</strong>: Adds a duplicate button to Google Calendar event details popup
    -  <strong>Event Duration Display</strong>: Shows the total duration of events on event cards
    -  <strong>Keyboard Shortcut</strong>: Quick duplicate events using a configurable keyboard shortcut
    -  <strong>Customizable Options</strong>: Configure the extension behavior through the popup options

## Rankings

- #11,971 — Overall
- #11 — application
- #37 — event
- #82 — location
- #145 — calendar
- #145 — card

## Permissions and access

### Permissions

- `activeTab`
- `storage`

### Host permissions

- `https://calendar.google.com/*`

### Content script matches

- `calendar.google.com`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Request access to the following domains: google.com
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/gcal-duplicate-duration)