AI Browser Extensions Silently Changing Permissions

💬 64% of users have an AI extension that quietly changed its permissions in the last year. Including probably you. The post reports that AI browser extensions are significantly more likely than regular extensions to modify their permissions after installation, with a 6x higher chance of changing scope, 3x higher likelihood of reading cookies, and 2.5x higher probability of injecting scripts. The author discovered three of their own extensions had silently expanded permissions, including one that now reads cookies without prior approval or notification. These changes often go undetected by security tools like EDR or proxy logs unless manually reviewed in the browser’s extension settings.