Just Cosmos Ticker Pro
🔍 Security Report Available View on Chrome Web StoreChrome will indicate if you already have this installed.
Overview
Super lightweight minimalist extension that displays the current Cosmos (ATOM) Coin price in USD.
Price pulled from Coingecko's v3 API.
Other coins? Download here -> https://cpte-org.github.io/
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Code here: https://github.com/cpte-org/Crypto-price-ticker-extension
Tags
Privacy Practices
Security Analysis — Just Cosmos Ticker Pro
Permissions
Code Patterns Detected
External Connections
Package Contents 8 files · 26KB
What This Extension Does
Just Cosmos Ticker Pro is a minimalist browser extension designed to display the current price of the Cosmos (ATOM) cryptocurrency in USD directly on web pages. It solves the problem of needing to switch tabs to check prices by fetching real-time data from Coingecko's public API. This tool is ideal for crypto traders and enthusiasts who want quick, unobtrusive access to market data without installing heavy applications.
Permissions Explained
- storageexpected: Allows the extension to save your settings (like theme or position) and cache the last price you checked so it doesn't need to reload every single time you open a page.
Technical: Accesses chrome.storage.sync and chrome.storage.local. This API persists key-value pairs in the browser's local database. If compromised, an attacker could theoretically read saved preferences or inject data into your profile storage, though this is generally low-risk for simple extensions. - alarmsexpected: Enables the extension to wake up periodically in the background to refresh the price display without you having to manually reload the page.
Technical: Utilizes chrome.alarms API to schedule periodic triggers for the service worker. This allows the background script to execute code at specific intervals (e.g., every 60 seconds) to fetch fresh data from the network, ensuring the displayed price is current.
Your Data
The extension only communicates with Coingecko's public API to retrieve coin prices. It does not appear to collect your browsing history, personal information, or send data to third-party servers beyond the necessary price feed.
Technical Details
Code Findings
The extension does not have a strict security policy set, which means it relies on the browser's default settings. While this isn't dangerous for such a simple tool, adding a CSP would be a best practice to prevent any potential malicious scripts from running if the code were ever compromised.
Technical: Manifest V3 extensions should define 'content_security_policy' in their manifest.json (e.g., 'script-src 'self'';'). The absence of this directive allows execution of scripts from any origin permitted by the browser's default policy. This expands the attack surface slightly, though the risk is minimal given the extension's small codebase.
💡 Many lightweight extensions omit CSP to reduce manifest size and complexity, assuming the 'self' directive is sufficient for their internal logic.
The extension uses standard web technologies to talk to the internet. This is normal and safe, as long as it only talks to trusted websites like Coingecko.
Technical: Code utilizes the native 'fetch()' method to perform HTTP GET requests to api.coingecko.com/v3/coins/atom. This is the standard asynchronous pattern for client-side JavaScript. No custom HTTP libraries or obfuscated network calls were detected.
💡 Fetch API is the modern standard for all web applications and extensions to interact with RESTful APIs.
Just Cosmos Ticker Pro presents a very low security risk. Its permissions are strictly aligned with its function of displaying cryptocurrency prices, and it does not access sensitive user data or inject content into other websites. The only minor observation is the lack of a Content Security Policy, which is common in simple tools but could be improved for maximum hardening. Users can confidently install this extension to monitor ATOM prices.
