# Paste\_Guard

> Protects your privacy by masking secrets, API keys, and passwords when pasting into AI chat sites. Works fully offline — nothing leaves your browser.

Canonical page: [https://chrome-stats.com/d/paste\_guard](https://chrome-stats.com/d/paste_guard)

## Overview

- **ID:** `paste_guard`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Fedor
- **Category:** web-development,privacy-security
- **Version:** 0.2.3
- **Last updated:** 2025-10-20
- **First published:** 2025-10-17
- **Size:** 205 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/paste_guard/)

## Description

PasteGuard automatically detects and masks secrets such as API keys, tokens, and passwords before they are pasted into web chat fields — including ChatGPT, Copilot, Gemini, DeepSeek and others. It works 100% locally inside the browser without sending or storing any data.

Features:
• Detects 20+ secret patterns (API keys, JWT, OAuth, etc.)
• Works in text boxes and editors
• Fully offline, no tracking or external connections
• Customizable allow/block list for sites

## Rankings

- #142,317 — Overall

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `webNavigation`
- `menus`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [PasteGuard: Sensitive Data Shield](https://chrome-stats.com/d/pasteguard-shield)
- [PasteGuard](https://chrome-stats.com/d/pasteguard22) — 1 users
- [AI Paste Guard](https://chrome-stats.com/d/ai-paste-guard) — 1 users
- [Privatiser](https://chrome-stats.com/d/privatiser) — 6 users
- [Prompt Guard](https://chrome-stats.com/d/prompt-guard) — 1 users
- [SecureIntent](https://chrome-stats.com/d/secureintent) — 1 users, 5.00 / 5
- [CleanMyPrompt - AI Privacy Firewall](https://chrome-stats.com/d/cleanmyprompt-ai-firewall)
- [GuardFlow - Secret Detector](https://chrome-stats.com/d/guardflow-secret-detector)
- [PasteProof](https://chrome-stats.com/d/pasteproof)
- [Prompt Armour — AI Privacy Guard](https://chrome-stats.com/d/prompt-armour-ai-privacy-guard) — 1 users
- [SafeRelay - Local AI DLP](https://chrome-stats.com/d/safepaste-enterprise) — 1 users
- [PromptProtect](https://chrome-stats.com/d/promptprotect)

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Source: [Chrome-Stats](https://chrome-stats.com/d/paste_guard)