OpenAI Browser Integration for Prompt Security (Firefox)

The AccuKnox Prompt Firewall browser plugin intercepts prompts and responses directly in ChatGPT before they leave your browser session. Blocked prompts show a red banner. Allowed ones pass through silently.

This guide covers installation for Mozilla Firefox. For Chromium-based browsers (Chrome, Brave, Edge), see the Chrome integration guide.

Prerequisites

• An active AccuKnox account with AI Security enabled
• Access to the Integrations section (to generate a token)
• Mozilla Firefox browser

Step 1: Create a new integration

Go to AI Security > Integrations and click New Integration.

Fill in the following fields:

Field	Value
Integration Name	Any descriptive name (e.g. openai-browser-prod)
Tags	Add relevant tags (e.g. llmguard)

Click Add to save.

Step 2: Copy your token

After saving, the token is displayed once in a confirmation modal.

Save your token now

This token will not be shown again after you close the modal. Copy it immediately and store it in a secure location such as a password manager.

Step 3: Download and install the browser plugin

Download Firefox plugin and extract the ZIP file to a folder on your machine.

To install in Firefox:

1. Open Firefox and enter about:debugging in the address bar
2. Select This Firefox from the left sidebar
3. Click on Load Temporary Add-on

1. Navigate to the extracted plugin folder and select the manifest.json file
2. Click Open to load the add-on

The plugin is now connected and loaded in Firefox.

Step 4: Configure the extension

Click the AccuKnox icon in your Firefox toolbar and open Settings.

Fill in the following field:

Field	Value
API Key	Paste the token from Step 2

Click Save Settings, then Test Connection.

Step 5: Verify the connection

Once connected, the extension popup shows a green status dot next to AccuKnox Prompt Firewall along with a running count of scanned, allowed, blocked, and warned prompts. Click View Logs to see the full request log.

Open ChatGPT and send a test prompt. Depending on your active policy, you will see one of the following:

Request log

All intercepted prompts and responses are visible under AI Security > Request Log.

Each entry shows:

• Timestamp
• Direction (PROMPT or RESPONSE)
• Verdict (ALLOW or BLOCK)
• Content preview
• Latency

You can filter by verdict or direction, search by content or reason, and export the full log as JSON.

Important notes for Firefox

Temporary vs Permanent installation

The steps above load the add-on as a temporary installation, which means it will be unloaded when you restart Firefox. For a permanent installation, you can package the add-on or contact AccuKnox support for options to deploy the extension permanently.

Developer mode

Unlike Chrome, Firefox does not require explicitly enabling developer mode to load temporary add-ons. Simply navigate to about:debugging to begin.