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Opera One 129.0 Build 5750.18 – Final

(1 votes, 4.00 out of 5)

2026-03-18 00:00 362

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Description

Changelog

Specifications

Opera One 129 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 129 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 also has the advanced functions such as Opera Mail program. It is the lightweight, customizable mail client that refines your email experience.

Opera One 129 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 129.0.5823.15 – Final:

CHR-10238 Update Chromium on desktop-stable-145-5823 to 145.0.7632.117
DNA-124504 Crash at HandleDelayLoadFailureCommon
DNA-124516 Dcheck at l10n_util::GetDisplayNameForLocale
DNA-124520 Crash at extensions::ChromeContentRulesRegistry::WebContentsDestroyed
DNA-124523 Crash at Browser::GetActiveAddressBarModel
DNA-124530 Crash at SessionServiceBase::BuildCommandsForBrowser
DNA-124538 Add space around close button
DNA-124540 Broken order of tabs when opening bookmark folder with middle click
DNA-124550 Skip button causing issues for Netflix
DNA-124552 [Mac OS] Missing tab strip, top bar controls afer going fullscreen
DNA-124562 Crash at AutoPictureInPictureTabHelper::IsEligibleForAutoPictureInPicture
DNA-124563 [macOS] Crash at base::AtExitManager::RegisterCallback
DNA-124565 Crash at content::webid::RequestService::RequestService
DNA-124573 Promote 129 to stable
DNA-124579 Crash at base::AtExitManager::RegisterCallback
DNA-124585 Opera binary crashes after trying to run it in terminal without starting browser process
DNA-124593 [macOS] Crash after Opera is started by netinstaller
DNA-124611 Crash when restoring session containing a split screen
DNA-124625 Crash at opera::TabBar::GetTabIndex
DNA-124632 DCheck at sessions::(anonymous namespace)::CreateSessionCommandFromPickle
DNA-124638 Crash when trying to save tab text in session
DNA-124642 Cherry-pick chromium 0-day CVE-2026-3910
DNA-124643 Cherry-pick chromium 0-day CVE-2026-3909
RNA-760 DCHECK in label.cc when showing tab hover card
RNA-995 [Win][Warn on Quit] “You have X tabs open” message missing on smaller screens (intermittent)
RNA-1445 [More split screen] Update hover and active colors used for domain chips
RNA-2037 [Context menu] Group: New Tab / Create Tab Island / Create Split Screen
RNA-2103 Resized AI panel does not retain width properly when reopened
RNA-2302 Split screen icon appears cut off in Recently closed
RNA-2315 [Regression] Folder icon broken in “Bookmarks” menu (O-menu)
RNA-2327 Crash when closing split screen as a last tab
RNA-2339 UI bugs
RNA-2340 Implement WebUI resizing mechanizm
RNA-2354 Do not allow split screen with detached google meet
RNA-2355 [Sharing Point] Opera window loses focus after second click on feedback (RateMe) icon
RNA-2356 Opera Wallet (Crypto Wallet) reappears in sidebar after updating from Opera One 128 to 129
RNA-2360 Translations for O128
RNA-2362 [Translations] Incorrect Ukrainian translations in OMenu and Settings
RNA-2364 Instagram refreshes every time a sidebar panel is opened.
RNA-2365 ‘How do I do that’ link on the Start Page banner leads to the beggining of the page, not the desired section
RNA-2373 [Lin] No focus on address bar after opening new window
RNA-2376 Page crash when opening Google Meet
RNA-2387 ‘How does it work?’ link doesn’t work for Gemini – wrong link
RNA-2408 Lucid mode doesn’t work in Youtube in the sidebar
RNA-2410 The custom color used in the tab island doesn’t save in recently closed
RNA-2413 [Player]Error when logging into Deezer in Player
RNA-2421 Remove option to enable automatic picture-in-picture in the Youtube in sidepanel
RNA-2422 Remove lucid mode option in the Youtube in sidepanel
RNA-2427 Crash at Widget::GetTopLevelWidget()
RNA-2434 Assertion in ui::Compositor::DidCommit
RNA-2479 Translations for O129
RNA-2497 [Win] Switching between tabs causes the tab(s) in the tab bar to jitter/shake.
RNA-2506 Crash at tabs::TabCollection::FindMovePositionRecursive
RNA-2508 Displaying TI without name in recently closed
RNA-2671 Enable #gemini-in-sidebar on all streams
RNA-2672 Enable feature flag #google-translate-in-sidebar on all streams

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: 113 MB

Opera One 129.0 Build 5750.18 – Final