# DayMark: Year Events Calendar

> Year calendar with an ability to highlight custom events such as holidays, vacations or other notable days.

Canonical page: [https://chrome-stats.com/d/daymark](https://chrome-stats.com/d/daymark)

## Overview

- **ID:** `daymark`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Viacheslav Mukha
- **Category:** appearance,language-support
- **Daily users:** 48
- **Weekly downloads:** 5
- **Rating:** 1.00 / 5 (1 ratings)
- **Version:** 3.0.7
- **Last updated:** 2026-03-13
- **First published:** 2025-02-27
- **Size:** 398 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/daymark/)

## Description

Very simple Year Calendar with an ability to add custom events for one or multiple days, choosing a color of highlighted days. Configure to display week numbers.

You can use it to highlight public holidays in your country or track your vacations.

## Rankings

- #16,557 — Overall
- #11 — event
- #24 — calendar
- #71 — prevent

## Permissions and access

### Permissions

- `storage`
- `notifications`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Enables sending notifications which can be spammed but have minimal direct security impact.
- 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/daymark)