# IndicateTLS

> Displays negotiated SSL/TLS protocol version and additional security information in the address bar

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

## Overview

- **ID:** `indicatetls`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Jannis Pinter
- **Category:** web-development,privacy-security
- **Daily users:** 1,299
- **Weekly downloads:** 18
- **Rating:** 4.76 / 5 (25 ratings)
- **Version:** 0.4.0
- **Last updated:** 2026-04-07
- **First published:** 2019-04-12
- **Size:** 148 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/indicatetls/)
- **Website:** [https://github.com/jannispinter/indicatetls](https://github.com/jannispinter/indicatetls)

## Description

IndicateTLS is a Firefox add-on leveraging the SecurityInfo API to provide real-time insights into the transport security of the websites you visit. It prominently displays the negotiated SSL/TLS protocol version as an icon in the address bar, enhancing your awareness of website security at a glance. Beyond the main site, IndicateTLS allows you to click the icon to access detailed information, including the TLS versions used by third-party servers delivering resources on the visited webpage. This empowers users to better understand and trust the security protocols protecting their data across all web content.

## Rankings

- #2,867 — Overall
- #320 — Web Development
- #26 — education
- #42 — catalog
- #47 — education
- #55 — category

## Permissions and access

### Permissions

- `tabs`
- `webNavigation`
- `webRequest`
- `webRequestBlocking`
- `http://*/*`
- `https://*/*`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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).

## Review summary

IndicateTLS is praised as a reliable and user-friendly Firefox add-on for quickly viewing TLS/SSL security information, replacing older tools effectively. Users appreciate the clear layout and real-time site security details. However, some express concern about the broad data access permissions required by the extension. Feature requests include support for newer protocols like eSNI/SNI and customization of the icon's appearance and position within the browser interface.

### Pros

- Provides quick and clear TLS/SSL/HTTPS connection information.
- Serves as a good replacement for older TLS checking add-ons like SSLLeuth and Calomel SSL.
- User-friendly layout that makes TLS configuration easy to understand.
- Helpful for security-conscious users to check site security details.

### Cons

- Concerns about the extension's extensive permissions and access to browsing data and saved passwords.
- Requests for additional features like support for eSNI/SNI indication.
- Suggestions for UI improvements such as choosing icon colors or repositioning the indicator next to the address bar padlock.

## Similar extensions and apps

- [Indicate TLS Premium](https://chrome-stats.com/d/indicate-tls-premium) — 1 users
- [Certificate Trust](https://chrome-stats.com/d/certificate-trust) — 120 users, 4.00 / 5
- [cerdicator](https://chrome-stats.com/d/cerdicator) — 2 users
- [HTTPS by default](https://chrome-stats.com/d/https-by-default) — 552 users, 5.00 / 5
- [HTTP Version Indicator](https://chrome-stats.com/d/http2-indicator) — 2,647 users, 4.66 / 5
- [moarTLS Analyzer Plus](https://chrome-stats.com/d/moartls-analyzer-plus)
- [SSLeuth](https://chrome-stats.com/d/ssleuth) — 64 users
- [moarTLS](https://chrome-stats.com/d/moartls) — 10 users, 4.75 / 5
- [Smart HTTPS](https://chrome-stats.com/d/smart-https-revived) — 16,139 users, 4.38 / 5
- [Encryption Status Monitor](https://chrome-stats.com/d/encryption-status-monitor) — 1 users
- [Quantum Safety](https://chrome-stats.com/d/quantum-safety) — 20 users
- [Know TLS Cert](https://chrome-stats.com/d/know-tls-cert) — 3 users

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