OpenGraph Sniffer MHL

Name: OpenGraph Sniffer MHL
Author: Marcin Orlowski

Exposes page OpenGraph or Twitter Card tags, and lets you easily copy any of the metadata or page social media thumbnails.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-08-20

Version:

1.0.0

Last updated: 2026-07-31

Features & Capabilities

A small browser extension that tells you at a glance whether the page you are looking at ships OpenGraph or Twitter Card metadata, and lets you grab these tags with one click, including page thumbnail. Features:

Shows an icon on the address bar whenever the page declares OpenGraph or Twitter Card tags.
Allows you to see and copy out all the tags page uses, incl. thumbnail images.
Automatically fetch the page in anonymous crawler mode (as i.e. Slack or Signal does) for complete tags set.

User Growth & Download Statistics

Add-on

By:

Marcin Orlowski

Daily users:

Version:

1.0.0 Last updated: 2026-07-31

Version code:

6380120

Creation date:

2026-07-28

Risk:

Permissions:

Host permissions:

*://*/*

Content scripts matches:

Size:

23.28KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-20

Compare stats and ranking:

Ranking

# 145,318 ▲ 2,633

Other rankings

#207 in graph keyword 10 ▲ 7

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Marcin Orlowski

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/opengraph-sniffer-mhl/

Website:

https://github.com/MarcinOrlowski/opengraph-sniffer-mhl

Is OpenGraph Sniffer MHL Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

OpenGraph Sniffer MHL requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

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

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

OpenGraph Sniffer MHL is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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