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Background for this topic.
Browser extensions are small software add-ons that enhance or modify web browser functionality, such as blocking ads, managing passwords, or customizing page content. They operate within the browser environment and often require explicit permissions to access user data, browsing activity, or webpage content. Extensions are typically installed from official browser stores or third-party sources.
From a security perspective, extensions can pose risks if granted excessive permissions or sourced from untrusted developers. Malicious or compromised extensions may intercept sensitive information, inject harmful scripts into web pages, or enable tracking beyond normal browser capabilities. Security practitioners should carefully evaluate extension permissions, restrict installations to trusted sources, and ensure timely updates to mitigate risks related to data leakage, unauthorized access, or persistent browser compromise.
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The end isn't nigh after all Chrome's latest revision of its browser extension architecture, known as Manifest v3 (MV3), was widely expected to make content blocking and privacy extensions less effective than its predecessor, Manifest v2 (MV2).…
And some are still active in the Microsoft Edge store A seven-year malicious browser extension campaign infected 4.3 million Google Chrome and Microsoft Edge users with malware, including backdoors and spyware sending people's data to servers in China. And, according to Koi researchers, five of the extensions with more than 4 million installs are still live in the Edge marketplace.…
Threat actor exploited phishing and OAuth abuse to inject malicious code Cybersecurity outfit Sekoia is warning Chrome users of a supply chain attack targeting browser extension developers that has potentially impacted hundreds of thousands of individuals already.…
Under New Management is an early-warning system for potential poisoning of add-ons with malware Millions of Chrome users now have a way to guard against the threat of extension subversion, that is, if they don't mind installing yet another browser extension.…
Anyone with sizable audience in this surveillance economy is invited to stuff their apps with tracking and ads Interview In the past nine years, Oleg Anashkin, a software developer based in San Jose, California, has received more than 130 solicitations to monetize his Chrome browser extension, Hover Zoom+.…
Country's super strong data rights under magnifying glass after half a dozen complaints filed Remember the Who Targets Me browser extension from privacy activists at Noyb? The group yesterday filed explosive complaints based on log records from the extension that claim six of Germany's political parties broke European data law when they targeted voters on Facebook's adtech platform.…
Code Verify tool confers with Cloudflare to warn of any shenanigans WhatsApp and Cloudflare have teamed up to provide desktop users of WhatsApp's web client with a browser extension called Code Verify that checks the integrity of the software running in their browser.…