LightSession Pro for ChatGPT

Name: LightSession Pro for ChatGPT
Rating: 4.15 (27 reviews)
Author: Emil K

Keep ChatGPT fast by keeping only the last N messages in the DOM. Local-only.

As of June 2026, LightSession Pro for ChatGPT has 6,000 users and a 4.15/5 rating from 27 reviews in the Productivity category.

Emil K Productivity

Chrome Web Store ↗.crx

Users+100.0%

6.0K

6,000

Rating−3.3%

4.15

27 reviews

Reviews+28.6%

Version

1.7.5

Manifest V3

90-day change · In the last 90 days this extension gained 3.0K users, 1 version update.

History

8 snapshots

Tracking since Apr 16, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 16, 2026	3.0K	4.29	21	1.7.3
Apr 26, 2026	5.0K	4.17	23	1.7.5
May 7, 2026	5.0K	4.17	23	1.7.5
May 11, 2026	6.0K	4.20	25	1.7.5
May 14, 2026	7.0K	4.20	25	1.7.5
May 23, 2026	8.0K	4.20	25	1.7.5
May 27, 2026	7.0K	4.12	26	1.7.5
Jun 21, 2026	5.0K	4.12	26	1.7.5
Now	6.0K	4.15	27	1.7.5

Permissions & access

Permissions: storagetabsdeclarativeContent
Host access: *://chat.openai.com/*, *://chatgpt.com/*

Screenshots

LightSession Pro for ChatGPT screenshot 1

About

LightSession for ChatGPT

Fix slow, laggy ChatGPT tabs in Chrome. LightSession is a small, local-only extension that keeps long conversations fast by trimming old messages from the page while your real chat history stays safe on OpenAI's servers.

WHY CHATGPT GETS SLOW

When you keep one ChatGPT conversation open for a long time, the page DOM grows with every message. Over time this can cause:

• Choppy scrolling
• Typing delays in the input box
• High CPU and memory usage
• The whole Chrome tab feeling sluggish

HOW LIGHTSESSION WORKS

LightSession runs only in your browser:

• Watches the ChatGPT page and removes older DOM nodes
• Keeps only the last N messages visible (1–100, configurable)
• Waits until a response has finished streaming before trimming
• Pauses trimming while you scroll up to read history

Removed messages are NOT deleted from ChatGPT. They are just removed from the current page view. To see the full conversation again, simply reload the tab — ChatGPT will load the whole history from the server.

FEATURES

Performance:
• Fixes slow/laggy ChatGPT tabs in Chrome
• Automatic trimming of old messages in long chats
• Efficient DOM updates designed to stay within the 16ms frame budget

User Experience:
• Simple popup UI: enable/disable with one toggle
• Choose how many recent messages to keep (default: 10)
• Optional "Refresh" button in the popup to reload full history
• Works on both chat.openai.com and chatgpt.com

Privacy & Security:
• 100% local processing — no extra network requests
• No data collection, no analytics, no tracking
• Open source code available on GitHub

USAGE

1. Install the extension and open ChatGPT in Chrome
2. Click the LightSession icon in the toolbar
3. Turn on "Extension enabled"
4. Set how many messages to keep
5. Use ChatGPT as usual — trimming happens automatically

To restore the full conversation at any time, click "Refresh" in the popup or reload the page.

OPEN SOURCE

LightSession is open source. Issues, feature requests and contributions are welcome:

GitHub: https://github.com/11me/light-session

Technical

Version: 1.7.5
Manifest: V3
Size: 25.65KiB
Min Chrome: 88
Languages: 1
Featured: No

Metadata

ID: cenmillohidhjjjjiocmddkgmlonaigp
Developer ID: ub273d9c8ab263cb2ab2fd21d6a1f6041
Developer Email: [email protected]
Created: Jan 12, 2026
Last Updated (Store): Apr 10, 2026
Last Scraped: Jun 21, 2026
Website: —
Support URL: https://github.com/11me/light-session
Privacy Policy: https://github.com/11me/light-session/blob/master/PRIVACY.md