Best of Google Chrome — October 2025

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   Chrome Developers·30w

   Chrome for Developers

   Chrome 142 introduces three major CSS and web platform features: the :target-before and :target-after pseudo-classes for styling scroll markers relative to the active marker, range syntax support for style container queries and the if() function enabling numeric comparisons with operators, and the interestfor attribute for button and anchor elements that triggers actions when users show interest through hover, keyboard shortcuts, or long-press gestures.

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   Article

   Bram.us·31w

   CSS @starting-style debugging is available in Chrome DevTools!

   Chrome DevTools now includes debugging support for CSS @starting-style rules in Canary 143+. The feature adds visual indicators (pills) in the elements tree to identify affected elements, allows toggling elements into their @starting-style state for inspection, and prioritizes showing only active styles by default. The implementation focuses on correctness and discoverability, with a design that differs from other browsers' approaches.

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   Chrome Developers·32w

   What's new in Lighthouse 13

   Lighthouse 13 consolidates performance audits into unified insights shared with Chrome DevTools. The release removes legacy audits like Speed Index, font-size, and offscreen-images, replacing them with modern insight-based audits for layout shifts, duplicated JavaScript, and LCP optimization. The update requires Node 22.19 or higher and is available via npm, Chrome Canary, and will roll out to PageSpeed Insights and Chrome 143 stable.

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   Bram.us·33w

   What’s New in View Transitions (2025 Update)

   View Transitions have evolved significantly since their initial release in Chrome in 2023. The 2024 updates introduced Cross-Document View Transitions, view-transition-class, and View Transition Types, with Safari joining the support ecosystem. A comprehensive overview of 2025 developments is available on the Chrome developer blog.

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   Article

   CSO Online·31w

   Google kills its cookie killer

   Google is discontinuing 11 Privacy Sandbox technologies due to low adoption rates and ecosystem feedback. The initiative, launched in 2019 as a cookie alternative for advertisers, faced antitrust investigations from UK and US authorities over concerns about Chrome's market dominance. Despite Google's concessions to regulators, the technologies failed to gain traction due to operational complexity and unclear ROI. Discontinued APIs include Attribution Reporting, Protected Audience, Topics, and IP Protection across Chrome and Android. Google will continue privacy work but drop the Privacy Sandbox branding.

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   Chrome Developers·32w

   What's new in DevTools, Chrome 141

   Chrome 141 introduces DevTools Model Context Protocol (MCP) server enabling AI coding assistants to debug web pages directly in Chrome. New features include Gemini integration for debugging network dependency trees and performance insights, AI chat export functionality, persisted track configuration in the Performance panel, IP-protected network request filtering, masonry layout inspection support, and Lighthouse 12.8.2 with improved CSS custom property error reporting.

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   Article

   Frontend Masters·30w

   chrome-devtools-mcp – Frontend Masters Blog

   Chrome DevTools MCP is a server that enhances AI coding agents by providing browser context including DOM structure, network activity, and console messages. This allows AI tools to verify their code changes directly in the browser rather than relying solely on assumptions, potentially improving the accuracy of AI-generated web development code.

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