Hermes Browser Extension

Name: Hermes Browser Extension
Rating: 5 (1 reviews)
Author: Jon Komet

Connect Firefox page context to Hermes Agent. Ask questions about what you’re viewing, use Local, Hermes Cloud, or Remote gateway modes, and review drafts in a browser sidebar.

Overview

Firefox Add-ons Store

Daily users

25 ▲ 10

Data as of 2026-09-08

Rating:

5.00

(1)

Version:

0.3.2

Last updated: 2026-09-07

Features & Capabilities

Hermes Browser Extension connects Firefox to the Hermes Agent runtime you configure.

Use the browser sidebar to capture bounded context from the current page, selected text, open tabs, metadata, headings, links, forms, and buttons, then ask Hermes about what you are viewing.

Choose a Local gateway, Hermes Cloud, or Remote gateway. The extension supports Hermes sessions, model and runtime controls, streaming responses, attachments, voice input when available, generated media, appearance themes, and diagnostics.

Hermes Assist provides site-aware drafting for supported writing surfaces. It can prepare replies, posts, or messages for review. It does not click Send, Post, or Submit, navigate pages, make purchases, or operate the browser autonomously.

The extension includes no analytics, advertising, tracking pixels, or third-party reporting SDKs. Browser context is sent only to the Hermes runtime you configure, and Chat only mode disables page context for a turn.

Requires Firefox 142 or later. Review the privacy policy before installation.

Hermes Agent is an open-source project by Nous Research. Hermes Browser Extension is a community extension by Jon Komet that connects through a local gateway, Hermes Cloud agent tab, or self-hosted remote gateway. It is designed to live at the edge of the ecosystem without adding core tool-schema footprint.

Useful links:

Hermes docs: https://hermes-agent.nousresearch.com/docs
Hermes API server docs: https://hermes-agent.nousresearch.com/docs/user-guide/features/api-server
Hermes upstream repo: https://github.com/NousResearch/hermes-agent

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

0.3.2 Last updated: 2026-09-07

Version code:

6467571

Creation date:

2026-08-18

Firefox add-on GUID:

hermes-browser-extension@abundantbeing.github.io

Firefox add-on numeric ID:

3056309

Weekly download count:

Firefox on Android:

Risk:

Permissions:

Host permissions:

http://127.0.0.1/*
http://localhost/*
http://*/*
https://*/*
file:///*

Content scripts matches:

Size:

8.09MB

Email:

st*****@gmail.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-08

Compare stats and ranking:

Ranking

# 22,065 ▲ 5,356

Other rankings

#66 in gateway keyword 11 ▲ 48#128 in browser extension keyword 46 ▲ 13

For Developers

Monetize with App Pass Boost with Extension Booster

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:

Jon Komet

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/hermes-browser-extension/

Email:

st*****@gmail.com

Website:

https://github.com/abundantbeing/hermes-browser-extension/issues

User Reviews

Amazing extension, allows me to connect my Hermes agent to browser seamlessly.

by *****, 2026-08-22

View all user reviews ›

Is Hermes Browser Extension 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.

Hermes Browser Extension requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

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

Hermes Browser Extension 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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