Opera One 135.0 Build 5973.133 – Best Free Web Browser

Chromium-based browser with built-in VPN, ad blocker, AI tools, and advanced tab management

2026-09-12

2637

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Opera One - Next-gen browser with modular design, AI integration, and smooth multitasking features.

Opera One 135 is a fast, secure, and innovative web browser designed to deliver a smooth and intelligent browsing experience. Built on a modular AI framework, it offers a clean interface that aligns with your workflow, enabling efficient multitasking and personalized browsing. With advanced privacy tools, including a built-in VPN, ad blocker, and tracker protection, Opera One delivers speed and security while maintaining a modern, intuitive experience.

Opera One 135 brings powerful new features to compete in the race for the most popular web browser, currently dominated by Google Chrome, Firefox, and Microsoft Edge.

This web browser offers a single, intuitive, and powerful place for both searching and navigating the web. It gives search options from multiple providers and presents smart site suggestions as you type. Plus, its standout “Discover” feature delivers high-quality news and entertainment content from many sources, making it a strong choice for a web browser with an integrated discovery feed.

Opera One 135 features advanced capabilities, including the integrated Opera Mail client for seamless email management. This lightweight mail client delivers a better email experience while supporting efficient communication on a single platform.

Opera One Web Browser Features:

Anti-Bitcoin mining tool

The browser offers protection through an innovative Bitcoin mining blocker. It also displays security badges that provide a quick overview of a page’s security. If the browser’s Fraud and Malware Protection detects anything potentially dangerous, it will display a warning pop-up.

Blocker

Enjoy cleaner and smoother browsing with fewer distractions. The Ad Blocker enhances privacy and browsing speed on mobile and desktop devices, delivering a privacy-focused solution for faster web access.

AI

Chat with AI on desktop and mobile in Opera Browser. ChatGPT and Aria, Opera’s free and unlimited browser AI, are seamlessly integrated into your browser.

Messengers

Effortlessly access your favorite messaging and social apps while browsing the web. WhatsApp, Instagram, Twitter, and more are built into your sidebar.

VPN

Browse privately using Opera’s built-in, free VPN on desktop and mobile. For enhanced protection across your entire device, you can subscribe to VPN Pro. This makes Opera a reliable free VPN browser with optional premium device-wide protection.

Flow file sharing

Instantly send files, links, and notes between your devices.

Sync data

Synchronize Opera Browser across all your devices. By installing Opera on Android, iOS, and desktop, you can experience seamless cross-device syncing. Create bookmarks on your computer and watch them instantly appear on your Android or iOS phone. Opera offers a reliable cross-device sync browser for seamless bookmarking and browsing.

Music Player

A world of music and podcasts at your fingertips. H.264 video and MP3 Audio are widely used on the internet. Therefore, with Opera Browser, you will have native access to such content.

Opera Wallet

Make secure crypto transactions with a built-in crypto wallet.

Pinboards

A world of music and podcasts at your fingertips.

It has an integrated PDF viewer.

Additionally, Opera has integrated a fast PDF viewer directly into the browser, letting you read documents without switching applications. This feature makes Opera a convenient Chromium-based browser with built-in PDF viewing.

The video pops up.

The feature places the video frame on the side of the screen, helping you multitask. Browse, shop online, or do research while staying connected to video action.

RSS in personal news.

RSS support makes the built-in newsreader even more customizable.

VR Player Support

Opera is the first browser to support 360-degree videos on virtual reality headsets. The VR 360 player is built in and compatible with HTC Vive, Oculus Rift, and OpenVR-supported headsets. This feature unlocks an immersive world of 360-degree videos for Opera users, making it a standout VR-ready browser with integrated 360-degree video playback.

Opera One – Pros & Cons

Pros	Cons
✓ Features a modern tab management system with Tab Islands, helping users organize related tabs and reduce browser clutter.	✗ The extensive set of built-in features may overwhelm users who prefer a lightweight, minimalist browser.
✓ Built-in ad blocker, tracker blocker, and free VPN improve privacy while reducing unnecessary page elements and distractions.	✗ Some AI-powered features and online services depend on an internet connection and may require signing in to use their full capabilities.
✓ Includes integrated messaging, music streaming, AI services, and sidebar tools, allowing quick access without installing additional extensions.	✗ Built-in VPN functionality has limitations compared to dedicated premium VPN services.
✓ Built on Chromium, providing excellent compatibility with modern websites and support for most Chrome Web Store extensions.	✗ Memory usage can increase significantly when many tabs, sidebar apps, and integrated services are active simultaneously.
✓ Delivers fast browsing performance with regular security updates and synchronization across supported desktop and mobile devices.	✗ Some users may prefer browsers with a stronger focus on open-source development and more granular privacy controls.

Frequently Asked Questions

Is Opera One safe to use?

Yes. It includes built-in protections such as ad and tracker blocking, fraud and malware warnings, and encrypted VPN connections. Keeping the browser updated is also important because security updates help address newly discovered vulnerabilities.

Can Opera One use Chrome extensions?

Yes. Opera supports Chrome Web Store extensions after installing the required Chrome-extension compatibility add-on. This gives users access to many Chrome extensions, although individual extensions may have compatibility limitations.

Does Opera One have a free VPN?

Yes. It includes a free built-in browser VPN with no fixed data limit. The VPN changes the apparent IP address and encrypts the connection between the browser and VPN server, but it is a browser-level VPN rather than a replacement for a full-device VPN service.

Is Opera One better than Google Chrome?

It depends on what you need from a browser. Opera One provides more built-in tools, such as a browser VPN, ad blocking, sidebar services, and integrated AI, whereas Google Chrome offers broader extension support and Google-service integration.

What’s New in Opera One 135.0.5973.123 – Final

Release Date 2026-09-10

DNA-125632 Backport fix for CVE-2026-87491
DNA-125603 Traffic lights don’t react on hover on macOS 26
RNA-4085 Search-copy popup is displayed in random places
RNA-4450 Implement fully functional chrome.sidePanel API
RNA-4451 Make sidePanel backend compile & link
RNA-4452 Implement sidePanel UI
RNA-4492 Single tab island created from a split-screen link click
RNA-4527 Close button not visible in collapsed tabs after you click on it
RNA-4529 WhatsApp panel doesn’t open with a shortcut
RNA-4530 Add top bar to extension side panel
RNA-4531 Add preference for changing new tab order
RNA-4532 Add option to change preference to settings
RNA-4534 Add option to change preference to Easy Setup
RNA-4544 Crash at TabDesktopMediaList::Refresh
RNA-4549 Bookmarks bar disappears after exiting full screen
RNA-4551 Add translations for strings in Easy Setup and Settings
RNA-4552 Label should read “Open new tabs”
RNA-4562 Can not drag split-screen tab inside tab island
RNA-4566 Crash at tabs::TabCollection::FindMovePositionRecursive
RNA-4569 Enable #vertical-tabs-new-tab-on-top on all stream
RNA-4642 [Crash] [Mac OS X] libobjc.A.dylib | opera::BrowserWindowCocoa::GetWidget