# CertiMonitor Pro

> CertiMonitor Pro swiftly provides the remaining days until a website's certificate expires. It exhibits the countdown on a padlock icon, turning red when there are less than 29 days left. An unlocked red padlock denotes an unencrypted connection.

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

## Overview

- **ID:** `certimonitor-pro`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Winbet58k.com
- **Category:** download-management
- **Version:** 3.0
- **Last updated:** 2024-01-09
- **First published:** 2024-01-08
- **Size:** 53 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/certimonitor-pro/)

## Description

CertiMonitor Pro is a user-friendly Firefox extension that promptly determines the days left until a website's certificate expires, showcasing the count on a padlock icon. It visually alerts users with a red indicator for certificates with less than a month remaining and denotes unencrypted connections with an unlocked red padlock.

## Rankings

- #140,629 — Overall

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `<all_urls>`
- `tabs`

## Safety

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

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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).

## Similar extensions and apps

- [Cert Monitor](https://chrome-stats.com/d/cert-monitor)
- [CertiStatus Plus](https://chrome-stats.com/d/certistatus-plus) — 7 users
- [CertiDays Tracker](https://chrome-stats.com/d/certidays-tracker)
- [CertiWatch Plus](https://chrome-stats.com/d/certiwatch-plus)
- [Cert Counter](https://chrome-stats.com/d/cert-counter) — 1 users
- [CertiCountdown](https://chrome-stats.com/d/certicountdown)
- [Cert Timer Pro](https://chrome-stats.com/d/cert-timer-pro)
- [Certificate expiration](https://chrome-stats.com/d/certificate-expiration) — 161 users, 4.67 / 5
- [Certi Watch](https://chrome-stats.com/d/certi-watch)
- [Cert Reminder](https://chrome-stats.com/d/cert-reminder)
- [Secure CertiMate](https://chrome-stats.com/d/secure-certimate)
- [CertiSafeGuard](https://chrome-stats.com/d/certisafeguard) — 16 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/certimonitor-pro)