# HTTP Version Indicator

> Adds a color-based indicator for the HTTP version of the top‐level document of a tab in the address bar.

Canonical page: [https://chrome-stats.com/d/http-version-indicator](https://chrome-stats.com/d/http-version-indicator)

## Overview

- **ID:** `http-version-indicator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Patrick Dark
- **Category:** web-development,privacy-security
- **Daily users:** 14
- **Rating:** 5.00 / 5 (2 ratings)
- **Version:** 2
- **Last updated:** 2021-05-08
- **First published:** 2020-11-18
- **Size:** 13 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/http-version-indicator/)

## Description

HTTP Version Indicator is a Firefox add-on that adds a color-based indicator for the HTTP version of the top-level document in the address bar. Green indicates HTTP 3.0, cyan indicates HTTP 2.0, yellow indicates HTTP 1.1, orange indicates HTTP 1.0, and white indicates an unknown HTTP version.

## Rankings

- #28,560 — Overall
- #25 — antivirus
- #27 — version
- #232 — documentation

## Permissions and access

### Permissions

- `http://*/*`
- `https://*/*`
- `webRequest`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low 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).

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