# AllowanceGuard

> Pre-transaction protection: detect risky approve(), permit(), and setApprovalForAll() calls before you sign

Canonical page: [https://chrome-stats.com/d/allowanceguard](https://chrome-stats.com/d/allowanceguard)

## Overview

- **ID:** `allowanceguard`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** AllowanceGuard
- **Category:** privacy-security
- **Version:** 2.0.2
- **Last updated:** 2026-04-22
- **First published:** 2026-04-03
- **Size:** 29 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/allowanceguard/)
- **Website:** [https://www.allowancegurad.com](https://www.allowancegurad.com/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/allowanceguard/privacy/](https://addons.mozilla.org/firefox/addon/allowanceguard/privacy/)

## Description

AllowanceGuard protects your crypto wallet from dangerous token approvals before you sign a transaction.

Most wallet exploits do not come from sending funds, but from approving malicious smart contracts using functions such as approve(), permit(), or setApprovalForAll(). Once approved, these contracts can move tokens without further confirmation.

AllowanceGuard analyzes transactions in real time and alerts you before you sign anything risky.

Key Features:

• Pre-transaction risk detection
• Smart contract and spender analysis
• Real-time warning alerts
• Works with popular wallets such as MetaMask
• Lightweight and fast  

How it works:

When you interact with a decentralized application, AllowanceGuard inspects the transaction request. If a risky approval is detected, you receive an immediate warning so you can reject it.

Privacy-first:

No personal data, private keys, or wallet balances are collected. Only minimal transaction metadata (token address, spender address, chain ID) is analyzed for risk scoring.

Free and Pro:

The free version provides core protection. Pro users unlock advanced risk detection and enhanced alerts.

## Rankings

- #144,810 — Overall
- #30 — metamask

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `scripting`

### Host permissions

- `https://*.allowanceguard.com/*`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Very high risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension support email may not be valid

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

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