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Opera One 135.0 Build 5973.142

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2026-09-15 00:00 1942

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Description

Changelog

Specifications

Opera One 135 is a fast and free alternative web browser, based on Chromium and Blink (the rendering engine used by Chromium). It includes tabbed browsing, pop-up blocking, integrated searches.

Opera One 135 has come up with bigger guns to enter the race for the most popular web browser, as the current leading role is played between Google Chrome, Firefox and Microsoft Edge.

This web browser has one intuitive, powerful location for searching and navigating the web. Search using multiple providers and view site suggestions as you type. The Discover feature gives you top-quality news and entertainment from around the globe.

Moreover, Opera One 135 also has the advanced functions such as Opera Mail program. It is the lightweight, customizable mail client that refines your email experience.

Opera One 135 Browser Features:

Anti-Bitcoin mining tool

The browser comes with an innovative anti-Bitcoin mining tool. It also displays security badges, which give you a quick glance at the security of a page. If the browser’s Fraud and Malware Protection detects anything potentially dangerous, it will display a popup to warn you.

Blocker

Enjoy cleaner and smoother browsing with less distractions. Ad Blocker protects your privacy and speeds up your browsing on both mobile and desktop.

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

Easily use your favorite messengers and social apps while browsing the web. WhatsApp, Instagram, Twitter and more are built right into your sidebar.

VPN

Browse privately using Opera’s built-in, free VPN on desktop and mobile. Or even subscribe to VPN Pro to get enhanced protection for your entire device.

Flow file sharing

Instantly send files, links and notes between your devices.

Sync data

Synchronize Opera Browser between all of your devices. If you install Opera browser for Android or iOS mobile and for Desktop on your computer, you can see cross-device syncing in action. Make some bookmarks on your computer and see them appear on your Android or iOS phone.

Music Player

A world of music and podcasts at your fingertips. H.264 video and MP3 Audio is 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.

Integrated PDF viewer.

In addition, Opera has integrated a fast PDF Viewer directly into the browser so you can keep reading without changing applications.

Video pop out.

Allows you to shift your video frame to the side of your screen, so you can truly multitask. Browse, shop online or do the research without missing out on the 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 in virtual reality headsets! It has a built-in VR 360 player for leading headsets, such as HTC Vive, Oculus Rift and other OpenVR compatible devices. That unlocks the immersive world of 360-degree videos for Opera users.

Changes in Opera One 135.0.5973.142:

DNA-125643 [Crash] [Windows] v8::internal::Factory::NewFillerObject

Changes in Opera One 135.0.5973.123:

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 clicking
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

Changes in Opera One 135.0.5973.92:

DNA-125615 [Crash] [Windows] nviewh64.dll | opera::first_run::(anonymous namespace)::RefreshSystemIcons
DNA-125619 Backport fix for CVE-2026-85046 to O135 and O136
RNA-4147 Update icon of search tabs in horizontal tab strip
RNA-4240 Animate transitions for adding new tab to tab island
RNA-4241 Implement changes to make it easier to see active tab
RNA-4419 No tab island context menu for tab islands created by drag and drop

Changes in Opera One 135.0.5973.76:

DNA-125494 Crash at opera::SoundsManagerService::OnTabStripModelDestroyed
DNA-125528 Playback not working on pluto.tv
RNA-4132 Split screen context menu shows “Close Tabs to the Right” when split screen
RNA-4233 Position of a split screen changes after switching from vertical tabs to horizontal
RNA-4331 Quick drag-and-drop of a tab creates an empty Tab Island preview group
RNA-4458 Middle-click on vertical tab close button does not close the tab

Homepage – https://www.opera.com

Opera System Requirements:

Windows

Windows 10 or later
Intel Pentium 4 / AMD Athlon 64 processor or later with support for SSE2

Mac

macOS 10.13 or later

Linux

64-bit Ubuntu 16.04 or later
Intel Pentium 4 / AMD Athlon 64 processor or later with support for SSE2

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Size: 120 MB

Opera One 135.0 Build 5973.142