Sidekick AI

Name: Sidekick AI
Author: woojooin

Firefox sidebar AI assistant that reads the page you're on and lets you chat right away. Use Web mode (ChatGPT, Claude, Gemini, Copilot) or API mode with your own OpenAI, Gemini, Anthropic, or Groq key

Download

Install

Features & Capabilities

Ask AI about the page you're viewing—right in the Firefox sidebar.

Sidekick AI keeps up with the page in your active tab. Ask questions like "Summarize this article" or "What does this page say about X?" without copying and pasting text yourself.

Two ways to chat

Web mode Embed the official web UIs for ChatGPT, Claude, Gemini, and Microsoft Copilot in the sidebar. Sign in with your existing account—no API key required.

Click Summarize page to copy the current page context to your clipboard
Paste it into the chat input on the service you choose

API mode (advanced) Bring your own API key for OpenAI, Google Gemini, Anthropic, or Groq. - Requests go directly to the provider over HTTPS - Enables the AI to search the live web and provide up-to-date responses - Your key and settings stay on your device - Page title, URL, and extracted body text are included automatically when you send a message

Sidekick AI uses a [BYOK] model.

Smart page reading

Prefers main content areas (main, article, and similar regions)
Filters navigation, ads, cookie banners, and other noise
Supports open Shadow DOM, same-origin iframes, and slow-loading pages
Skips browser system pages (about:, moz-extension:, etc.)

Webmail support

Excels at webmail analysis: understands the current email, analyzes its intent, and helps you draft replies
Supported services include gmail.com, outlook.com, mail.naver.com, and mail.daum.net

More features

Korean and English interface
Up to 3 recent prompts for quick reuse
Markdown rendering for AI replies
One-click copy for questions and answers

Privacy API keys and preferences are stored locally in Firefox. In API mode, chat data is sent only to the AI provider you choose—not to the extension developer.

User Growth & Download Statistics

Add-on

By:

woojooin

Daily users:

5 2

Version:

1.0.9 Last updated: 2026-06-15

Version code:

6307592

Creation date:

2026-06-02

Risk:

Permissions:

Host permissions:

http://*/*
https://*/*

Content scripts matches:

Size:

628.50KB

Email:

wo*****@gmail.com

URLs:

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-17

Compare stats and ranking:

Ranking

# 42,687 ▲ 9,444

Other rankings

#206 in copilot keyword 20 ▲ 12

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:

woojooin

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/sidekick-ai/

Email:

wo*****@gmail.com

Is Sidekick AI 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.

Sidekick AI 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.
Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

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.

Sidekick AI 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.
High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****