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- Browser Extensions: The Overlooked Attack Surface
Browser Extensions: The Overlooked Attack Surface
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Extensions See More Than You Realize
Many browser extensions request access to “read and change all data on websites you visit.” That means credentials, emails, internal tools — everything.
Popular Doesn’t Mean Safe
Even highly rated extensions can be sold to malicious actors. A legitimate tool today can become spyware after an unnoticed update.
Corporate Devices Multiply the Risk
If employees install personal extensions on work devices, sensitive internal systems become exposed through third-party code.
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The DTC beauty category is crowded. To break through, Jennifer Aniston’s brand LolaVie, worked with Roku Ads Manager to easily set up, test, and optimize CTV ad creatives. The campaign helped drive a big lift in sales and customer growth, helping LolaVie break through in the crowded beauty category.
Extensions Can Bypass Traditional Controls
Endpoint protection may not fully inspect extension behavior. Malicious scripts operate inside the browser session — where trust already exists.
OAuth and Session Theft Become Easier
Compromised extensions can capture session cookies, scrape tokens, or inject phishing overlays into legitimate websites.
Restrict and Monitor Extension Usage
Use managed browser policies to control allowed extensions. Audit installed add-ons regularly. Treat the browser as a critical attack surface — not just a tool.
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