Browser extensions are powerful tools — enhancing productivity, enabling integrations, and streamlining workflows for millions of users. But their privileged access to the browser environment, user data, and web content makes them a significant security risk when not properly built and maintained. ZyroSec's Browser Extension Security Review is a comprehensive assessment designed to uncover vulnerabilities, identify insecure behaviors, and verify that your extensions meet current best practices for security, privacy, and compliance.
Regular, in-depth security reviews surface weaknesses in extension code and permissions before attackers can exploit them — protecting your users from data theft, malicious script injection, and browser compromise.
We evaluate how your extension collects, processes, stores, and transmits user data — ensuring that privacy practices are appropriate, minimal, and transparently disclosed in line with GDPR, CCPA, and browser store requirements.
We detect suspicious or harmful behaviors embedded in extension code — including unauthorized data collection, cross-site tracking, content script injection, and hidden network communication.
We verify that your extension adheres to Chrome Web Store, Firefox Add-ons, and other browser platform security policies — helping you maintain your publishing status.
Our team includes skilled cybersecurity professionals with specialized experience in browser extension security, JavaScript security, and code-level vulnerability analysis.
We perform detailed reviews across multiple dimensions: static code analysis, permissions auditing, behavioral testing for unexpected network calls, and privacy assessments against applicable regulations.
Our findings are translated into actionable, prioritized recommendations specific to your extension's functionality, codebase, and distribution platform.
With ZyroSec's Browser Extension Security Review, your extensions are independently validated as safe, secure, and trustworthy. Our work protects your users, preserves your publishing relationship with browser platforms, and safeguards the reputation you've built through your product.
Let's discuss how ZyroSec can help protect your digital assets.
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