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

Custom AI Toolbox by JB

AI writing assistant for Gmail, LinkedIn, Twitter, Docs, Reddit, Notion, GitHub, Slack, Discord, and more.

Some features may require paymentSome features may require payment
0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
About this extension
Custom AI Toolbox adds a one-click AI writing assistant to the sites you use every day — Gmail, LinkedIn, Twitter/X, Google Docs, Reddit, Notion, GitHub, Slack, Discord, and more.

Select any text on the page, click the AI button, and instantly get rewrites, replies, summaries, or custom prompts — all without leaving the tab.

Features:
• Works on 15+ platforms
• Smart context detection (email, social, code, docs)
• Custom prompt library
• 3-day free trial, then $9/mo Pro
• Privacy-first: your text is never stored

Categories: Social & Communication, Web Development, Productivity (pick any 2–3 that fit)

Requires payment: ✅ Check this box (paid subscription after trial)

License: All Rights Reserved

Support email: bakerjoshua211@gmail.com

Notes to Reviewer:
Rated 0 by 0 reviewers
Log 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 browser tabs
  • Access your data for extension-rebuild.replit.app
  • Access your data for mail.google.com
  • Access your data for www.linkedin.com
  • Access your data for linkedin.com
  • Access your data for twitter.com
  • Access your data for x.com
  • Access your data for docs.google.com
  • Access your data for www.reddit.com
  • Access your data for reddit.com
  • Access your data for www.notion.so
  • Access your data for notion.so
  • Access your data for github.com
  • Access your data for www.github.com
  • Access your data for outlook.live.com
  • Access your data for outlook.office.com
  • Access your data for www.gmail.com
  • Access your data for substack.com
  • Access your data for www.substack.com
  • Access your data for medium.com
  • Access your data for www.medium.com
  • Access your data for slack.com
  • Access your data for app.slack.com
  • Access your data for discord.com
  • Access your data for www.discord.com
  • Access your data for chatgpt.com
  • Access your data for chat.openai.com

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Support site
  • Support Email
Version
1.0.1
Size
35.45 KB
Last updated
7 days ago (Apr 18, 2026)
Related Categories
  • Web Development
  • Social & Communication
License
All Rights Reserved
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

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • 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.