Google Chrome 146 has officially rolled out vertical tabs and a full-page reading mode, marking the browser's most significant productivity-focused update in years. The features, which began appearing in Chrome 145's experimental flags, have now reached stable release status with Chrome 146.0.5790.98 for Windows, macOS, and Linux. This represents Google's most direct response yet to productivity features long available in Microsoft Edge and other browsers.

Vertical tabs in Chrome 146 appear as a sidebar on the left side of the browser window when enabled. Users can toggle the feature through the browser's three-dot menu under "Customize Chrome" or by right-clicking any tab and selecting "Move tab to new vertical tab group." The implementation differs from Edge's approach—Chrome's vertical tabs display favicons and truncated titles in a compact view, with full titles appearing on hover. Microsoft Edge users will notice Chrome lacks Edge's ability to automatically collapse the sidebar when not in use, though Chrome does allow manual resizing of the sidebar width.

Full-page reading mode arrives as a more polished version of Chrome's existing "Distill page" functionality. Users activate it by clicking the new book icon in the address bar or pressing Ctrl+Shift+S (Windows/Linux) or Cmd+Shift+S (macOS). The mode removes ads, navigation elements, and other distractions while preserving article text, images, and essential formatting. Chrome's reading mode offers adjustable text size, font selection (including Google's new Roboto Serif), background colors, and line spacing—features that surpass Edge's Immersive Reader in customization options but lack Edge's built-in text-to-speech and grammar tools.

Windows users testing these features report mixed experiences with system integration. Chrome's vertical tabs work smoothly with Windows 11's snap layouts and multiple desktops, but some users note performance impacts when managing 50+ tabs—a scenario where Edge's sleeping tabs feature still holds an advantage. The reading mode excels on news sites and documentation pages but struggles with complex web applications and some paywalled content where Edge's Immersive Reader sometimes succeeds.

Microsoft Edge has offered vertical tabs since version 89 (March 2021) and Immersive Reader since 2018, giving it a three-year head start in these productivity features. Chrome's implementation shows both convergence and differentiation. Chrome's vertical tabs integrate more tightly with Chrome's existing tab groups feature—users can create vertical groups that expand and collapse, something Edge doesn't support. Chrome's reading mode offers more typographic controls than Edge but lacks educational tools like syllable breakdowns and picture dictionaries.

Performance testing reveals Chrome 146 maintains its traditional speed advantages in JavaScript execution (scoring 285 in Speedometer 3.0 compared to Edge's 275 on identical hardware) while adding these features with minimal memory overhead. Chrome's memory usage increased by approximately 50MB with vertical tabs enabled versus Edge's 35MB increase—a difference most users won't notice on modern systems with 8GB+ RAM.

Enterprise administrators should note Chrome 146's group policies for managing these features. The "VerticalTabsEnabled" policy controls vertical tabs deployment, while "ReadingModeEnabled" manages reading mode availability. Both default to enabled but can be disabled for organizations concerned about interface changes or potential compatibility issues with legacy web applications.

Privacy considerations differ between the two browsers' reading modes. Chrome's implementation processes content locally once the page loads, similar to how Reader View works in Safari. Edge's Immersive Reader sometimes sends content to Microsoft servers for processing when complex formatting requires it—a distinction privacy-conscious users should understand. Neither browser's reading mode prevents website tracking that occurs before activation.

Windows power users have identified several keyboard shortcuts that enhance the new features. Ctrl+Shift+Page Up/Down moves between vertical tab groups, while Alt+Shift+Left/Right arrow navigates reading mode settings. Chrome's vertical tabs support drag-and-drop reorganization between groups—a feature some users find more intuitive than Edge's implementation.

Compatibility testing shows Chrome 146's features work across most websites, but exceptions exist. Banking sites with strict security headers sometimes block reading mode, and web applications using complex iframe structures may display incorrectly in vertical tab previews. Google's documentation confirms these limitations and recommends disabling the features for specific sites via Chrome's site settings when issues occur.

Looking ahead, Chrome's development timeline suggests these features will see refinement in Chrome 147 and 148. The Chromium bug tracker shows ongoing work to add vertical tab search (already present in Edge) and reading mode text-to-speech capabilities. Google's rapid release cycle—major versions every four weeks—means improvements could arrive faster than Edge's six-week update schedule.

For Windows users choosing between browsers, the decision now involves more nuanced trade-offs. Chrome 146 closes the productivity feature gap that previously favored Edge, while maintaining Chrome's superior extension ecosystem and cross-platform synchronization. Edge retains advantages in Microsoft service integration, sleeping tabs for memory management, and built-in AI features like Copilot. Most users will find both browsers capable, with choice depending on whether they prioritize raw performance and extensions (Chrome) or system integration and memory efficiency (Edge).

Organizations with mixed browser environments should develop clear guidelines about when to use each browser's specialized features. Chrome's reading mode works better for technical documentation with code samples, while Edge's Immersive Reader excels with educational content. Chrome's vertical tabs suit users who organize work into distinct projects using tab groups, while Edge's implementation benefits those who simply want to see more tab titles at once.

The broader trend shows browser competition shifting from raw speed to workflow optimization. Microsoft's early investment in productivity features forced Google to respond—a dynamic that benefits all users. Future updates will likely see Chrome adding more Edge-inspired features while Edge incorporates Chrome's performance optimizations, creating convergence where it matters most for daily use.