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Opera 129.0.5818.0 Developer Edition

(1 votes, 4.00 out of 5)

2026-02-23 00:00 215

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Description

Changelog

Specifications

Opera 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 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 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 129.0.5818.0 Developer:

DNA-123967 [WinLin] Requested popup opens with wrong content size.
DNA-124487 gpu::CopyD3D11TexToMem() fails on SharedImage buffers
DNA-124514 Remove “Detach tab” button and context menu entry on video conferencing tabs
DNA-124519 [MyFlow] Update extension version
RNA-2102 Enable #sharing-point flag in early bird
RNA-2311 Use split_tabs::SplitTabId for Opera’s SplitScreen ID
RNA-2322 Split Messengers apps in sidebar settings into two sections
RNA-2329 Crash when restoring split screen in inactive workspace
RNA-2344 Crash at opera::SplitScreenModelImpl::GetSplitScreenId
RNA-2362 [Translations] Incorrect Ukrainian translations in OMenu and Settings
RNA-2369 Error on 1st launching Google Translate
RNA-2371 No internal page for ‘How does it work?’ link in Google Translate
RNA-2374 Update version of Intro extension in Opera repository

Changes in Opera 129.0.5812.0 Developer:

DNA-124309 SearchProviderRequestTest.SendRequestWithAimToolMode fails on stable
DNA-124374 Crash at syncer::SyncUserSettingsImpl::SetSelectedTypes
DNA-124462 DCHECK in FedCmAccountSelectionViewBrowserTest tests
DNA-124474 Re-synchronize video_overlay_window_views*
DNA-124477 Bump major version to 129
DNA-124482 Push back expiration of Chromium auto-PiP feature flags
DNA-124484 DCHECK in EasyFilesBrowserTest tests
DNA-124486 SettingsFocusTest.AutofillSectionFocus fails
DNA-124492 ExtensionMenuViewWithExtensionActionChangingParentBrowserTest.ShouldHidePopupBeforeMoving fails
RNA-954 Multiple session restore tests fail
RNA-1904 Split Screen button doesn’t appear
RNA-2019 Restoring Split Screen from macos top bar system menu
RNA-2020 Restoring Split Screen from Recently Closed
RNA-2021 Showing Split Screen pages in search in tabs
RNA-2058 [More split screen] CTRL+click multi-select on split screen tabs prevents switching tabs by click
RNA-2066 [Win][More split screen] Selecting 2 split screens with shift+click does not always work
RNA-2157 Crash when dragging tab island with meet tab detached from split screen
RNA-2214 Crash when creating split screen via drag&drop while a Google Meet call is active
RNA-2215 Moving the last tab out of a tab island to split screen does not close the tab island
RNA-2225 Split screen not moving with tab island to another workspace
RNA-2241 Persist recently closed split screens between runs
RNA-2247 Handle scenario when closing split screen is interrupted
RNA-2290 ‘How do I do that’ link on the Start Page banner always leads to English page
RNA-2299 Crash when opening Easy Files in sidebar overlay
RNA-2312 RecentlyClosedWindowTest.RestoreClosedSplitScreen fails on stable build

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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Opera 129.0.5818.0 Developer Edition