# Certage

> Show the remaining days for soon-expiring SSL certificates for any web page.

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

## Overview

- **ID:** `certage`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Angus Dippenaar
- **Category:** web-development,privacy-security
- **Daily users:** 24
- **Weekly downloads:** 1
- **Version:** 1.2.0
- **Last updated:** 2021-01-09
- **First published:** 2020-12-22
- **Size:** 23 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/certage/)

## Description

Certage is a Firefox add-on that retrieves SSL Certificate information and detects any errors for all requests made in each tab. It helps users track the remaining days for soon-expiring SSL certificates, providing a convenient way to ensure website security and avoid potential issues with invalid or expired certificates.

## Rankings

- #22,616 — Overall

## Permissions and access

### Permissions

- `<all_urls>`
- `storage`
- `webRequest`
- `webRequestBlocking`

## Safety

- **Risk impact:** Moderate 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

- [Certificate expiration](https://chrome-stats.com/d/certificate-expiration) — 160 users, 4.67 / 5
- [Cert Timer Pro](https://chrome-stats.com/d/cert-timer-pro)
- [Secure CertiMate](https://chrome-stats.com/d/secure-certimate)
- [Certi Watch](https://chrome-stats.com/d/certi-watch)
- [Secure CertiTracker](https://chrome-stats.com/d/secure-certitracker)
- [Cert Counter](https://chrome-stats.com/d/cert-counter) — 1 users
- [CertiCountdown](https://chrome-stats.com/d/certicountdown)
- [Cert Monitor](https://chrome-stats.com/d/cert-monitor)
- [CertiSafeGuard](https://chrome-stats.com/d/certisafeguard) — 17 users
- [Expiry Tracker Plus](https://chrome-stats.com/d/expiry-tracker-plus)
- [CertiDays Tracker](https://chrome-stats.com/d/certidays-tracker)
- [CertBadger](https://chrome-stats.com/d/certbadger) — 1 users

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