| Availability |
Odoo Online
Odoo.sh
On Premise
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| Lines of code | 166 |
| Technical Name |
multiple_tab_restrictions |
| License | LGPL-3 |
| Website | https://www.envisiontechnolabs.com |
✦ Odoo Security Module
Multiple Tab Restriction
One Session. One Tab. Full Control.
Prevent users from opening multiple Odoo tabs simultaneously — improve security, avoid data conflicts, and keep your sessions clean and controlled.
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1 Tab
Enforced Per User
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Auto
Detection & Alert
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🔒 Secure
Session Control
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| 🔒 | Strategic Overview |
| In busy Odoo environments, users often open multiple tabs — causing data sync issues, session conflicts, and security risks. Our Multiple Tab Restriction module detects duplicate tabs instantly and shows a clear prompt to close the extra tab, keeping your Odoo instance stable, secure, and consistent. |
🔍 Instant Detection
Detects multiple open tabs the moment a new Odoo tab is launched.
🚫 Smart Block
Shows a clear modal popup asking the user to close the duplicate tab immediately.
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What's Inside
Core Capabilities
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🔒
Tab Detection
Uses BroadcastChannel API to detect multiple open Odoo tabs in real time.
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🪟
Modal Popup
Clean, non-dismissible popup appears with a "Close This Tab" button — no confusion.
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👤
Per-User Control
Each logged-in user is individually tracked. Multi-user setups fully supported.
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⚡
Zero Config
Install and activate — no configuration needed. Works out of the box immediately.
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Why Use It
Key Benefits
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🛡️ Prevent Data Conflicts
Multiple open tabs can submit conflicting form data or overwrite each other's changes. This module stops that entirely.
🔐 Improve Security
In shared workstations or enterprise environments, limiting tab usage reduces session hijacking and unauthorized access risks.
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📉 Reduce Server Load
Each open tab maintains active WebSocket and polling connections. Fewer tabs means less server load and better performance.
🧹 Clean User Experience
Users are guided with a clear, friendly message instead of confusing errors or silent data loss.
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Under The Hood
How It Works
Detection happens client-side using the browser's BroadcastChannel API — no polling, no server calls, instant response.
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✦ Detection Flow
When Odoo loads in a browser tab, it broadcasts a "tab-open" signal. If another Odoo tab is already open, it responds immediately. The new tab detects this response and shows a blocking modal — preventing any interaction until the user closes the extra tab.
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📡
BroadcastChannel
Uses the browser's native BroadcastChannel API — no external libraries needed.
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🖥️
Client-Side Only
Zero extra server requests. Detection is instant and runs entirely in the browser.
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🔄
Works on Close
When the duplicate tab is closed, the original tab immediately resumes normal operation.
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Workflow Showcase
Multiple Tab Restriction in Action
From installation to real-time tab blocking — seamless session control, every time.
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▶
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Watch: How It Works
See the Multiple Tab Restriction module detect a duplicate tab and block it instantly with a modal popup — all in real time.
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1
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Install the Module
Search multiple_tab_restrictions in Odoo Apps and click Activate to install. No dependencies required.
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2
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Multiple Tab Detected — Modal Popup
When a second Odoo tab is opened, the module instantly detects it and shows a "Multiple Tab Detected" modal. Only one tab can remain active at a time.
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3
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Tab Closed — Session Secured
Clicking "Close This Tab" redirects the duplicate tab to the login page. The original tab continues normally — your session stays clean and secure.
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Get Started
Installation
📦 How to Install
| 1. Copy module to your addons folder |
| 2. Update Apps List from Settings |
| 3. Search: multiple_tab_restrictions |
| 4. Click Activate — done! ✅ |
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