AllowanceGuard Firefox

AllowanceGuard

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

Features & Capabilities

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.

User Growth & Download Statistics

Manifest V3 Add-on
By:
AllowanceGuard
Daily users:
-
Version:
2.0.2 Last updated: 2026-04-22
Version code:
6226355
Creation date:
2026-04-03
Risk:
Moderate risk impact Very high risk likelihood
Permissions:
Host permissions:
  • https://*.allowanceguard.com/*
Content scripts matches:
  • <all_urls>
Size:
29.47KB
Email:
su*****@allowancegurad.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-15
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
AllowanceGuard
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/allowanceguard/
Email:
su*****@allowancegurad.com
Website:
https://www.allowancegurad.com

Is AllowanceGuard Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

AllowanceGuard requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

AllowanceGuard is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension support email may not be valid
  • High **** ********* ******* *** *** ** *******
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  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
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