Google announces massive expansion of AI features in Chrome (arstechnica.com)

Google is rolling out what it calls the biggest Chrome upgrade yet, embedding its Gemini models across the browser. Desktop users get a Gemini button that opens a popup to summarize and answer questions about content across all open tabs, pull up vague links from history, and interact with other apps without leaving the page; Android already has system-level Gemini and iOS integration is coming. Search is shifting toward an “AI Mode” available from the omnibox (one-click or potentially swap-in as the default), plus an “ask about this page” side panel that surfaces an AI Overview and supports follow-ups (English only at launch). Chrome also links Gemini to Google services such as Calendar and YouTube for contextual, cross-app results. Technically this is a major push to make large models a first-class browser feature, changing how users find and act on web content and raising new privacy, data‑access, and reliability questions. Google is also deploying a strengthened Gemini Nano to detect scams, fake virus alerts and phony giveaways, and it’s extending AI to security features like one‑click automated password changes. Those protections could reduce common threats, but tighter model access to tabs, history and account data — plus possible hallucinations or misapplied automatic changes — mean users and admins will need to watch defaults, permissions and accuracy closely.