Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of ReadAI

ReadAI by Fadairo Marvellous

Highlight text to get AI explanations with context

0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Showing the chat interfaceAdd groq key
About this extension
ReadAI is a lightweight reading companion that lives in your browser. Highlight any text on any webpage and press Alt+Shift+X to get an instant AI-powered explanation that considers the full paragraph around what you selected — so you understand not just what something means, but what it means in context.

HOW IT WORKS

Highlight a sentence, phrase, or paragraph and press Alt+Shift+X. ReadAI sends your selection and its surrounding context to the AI and shows a plain-English explanation in a small popup right where you're reading. Ask follow-up questions inside the popup without losing your place on the page.

Highlight a single word and ReadAI automatically switches to dictionary mode — showing the definition, part of speech, phonetic pronunciation, and an example sentence in a clean card layout.

OFFLINE SUPPORT

A 26,000-word dictionary is downloaded to your device on first install. When you're offline and highlight a single word, ReadAI looks it up locally with no internet needed.

YOUR KEY, YOUR DATA

ReadAI uses your own free Groq API key. Get one at console.groq.com — no credit card required. Your key is stored locally on your device and never passes through any ReadAI server.

GETTING STARTED
  1. Install ReadAI
  2. Click the extension icon in your toolbar
  3. Paste your free Groq API key and save it
  4. Highlight any text on any webpage
  5. Press Alt+Shift+X

PRIVACY

ReadAI collects no personal data. Highlighted text goes directly from your browser to Groq's API using your own key. There is no ReadAI backend or server of any kind.
Rated 0 by 0 reviewers
Sign in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Access your data for all websites

Optional permissions:

  • Access your data for api.groq.com
  • Access your data for api.dictionaryapi.dev
  • Access your data for raw.githubusercontent.com

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Support site
  • Copy add-on ID
Version
1.0
Size
22.08 KB
Last updated
8 days ago (Jun 28, 2026)
Related Categories
  • Search Tools
  • Language Support
License
All Rights Reserved
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Add to collection
Report this add-on
Go to Mozilla’s homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.