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Available for:

Opera 91.0.4514.0 Developer Edition

Opera 91.0.4514.0 Developer Edition
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Opera 91 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 91 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 IMicrosoft 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 91 also has the advanced functions such as Opera Mail program. It is the lightweight, customizable mail client that refines your email experience.

Opera 91 Browser Features:

Now it 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.

Bookmarks. Now you can quickly enable or disable the bookmarks bar by selecting Show bookmark bar. If you want to bookmark a page, click the HEART icon.

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

Support for H.264 and MP3. H.264 video and MP3 Audio is widely used on the internet. Therefore, with Opera Browser you will have native access to such content.

Syncing Bookmarks with Android. If you install Opera browser for Android 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 phone.

Sync open tabs between computers. In Opera for computers, you can now sync your open tabs.

MSE + MP3. MSE Audio now works from within Opera, enabling playback from Google Play Music and similar services.

Custom ad-blocking list support. Users have the possibility to load your own files in the block-list form. Use extra button in Preferences, where you can add/remove any extra block-list files you’d like to load.

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.

Opera has integrated free VPN integrated for better online privacy.

That allows to be unblocked of firewalls and websites, hide your IP address and ensures public Wi-Fi security.

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 91.0.4514.0 Developer:

  • CHR-8979 Update Chromium on master to 105.0.5195.19
  • DNA-100664 Shopping corner widget
  • DNA-100835 AddressBarModelTestWithCategories.RefreshUnfilteredSuggestionsWhenPrefsChanged fails on beta stream
  • DNA-100896 Settings – Search engine – ‘Learn more’ hyperlink reopens settings page
  • DNA-101036 Use provided images as vector background
  • DNA-101171 Translations for O90
  • DNA-101200 Hide Sidebar option doesnt work
  • DNA-101207 Tab cycler bug in full screen
  • DNA-101216 Remove empty string from flow client_capabilities
  • DNA-101220 Crash at base::detail::operator==(base::detail::const_dict_iterator const&, base::detail::const_dict_iterator const&) via opera::MultipleWorkspacesController::SwitchWorkspace
  • DNA-101225 Sidebar shouldn’t disappear immediately when closing panels
  • DNA-101227 Google badge is not shown in address bar for search results with entities
  • DNA-101236 Check content
  • DNA-101241 “Remind me in 3 days” should be disabled after 3 tries
  • DNA-101253 Sidebar wont hide after page interaction (again)
  • DNA-101266 Fix translations errors in French
  • DNA-101275 Rewrite DefaultSearchViewHostMsg_PerformSearch to mojo
  • DNA-101276 Remove OperaViewMsg_SetUserAgentString
  • DNA-101278 PDF don’t work on Opera with CN location
  • DNA-101287 Rewrite DefaultSearchViewMsg_SetDefaultSearch to mojo
  • DNA-101289 Fix ExtensionAPIAvailabilityTest/ExtensionAPIAvailabilityTest.ExtensionAPIsInCurrentChannel to work on beta
  • DNA-101290 Add translated strings
  • DNA-101305 Address CHR-8949 critic issues
  • DNA-101306 DetectEmptyIfDefs doesn’t allow to push commit to repo
  • DNA-101308 Pop-up window is not restored from session
  • DNA-101309 Use base filename in PUT request when uploading files to buildbot
  • DNA-101310 Update chromium translations after CHR-8970
  • DNA-101317 Missing dependency for desktop/chrome_imports/chrome/browser/resources/extensions:build_bundle
  • DNA-101327 Update to check files in test mode
  • DNA-101328 DCHECK when handling uiTrackerPrivateInternal.onEvent
  • DNA-101349 Zoom percentage display not showing
  • DNA-101383 Revert DNA-101033

Changes in Opera 91.0.4505.0 Developer:

  • DNA-100014 Add suggestions to start page
  • DNA-100644 Missing highlight when suggestion has accents and other signs
  • DNA-100664 Shopping corner widget
  • DNA-100764 Fix “Confirm Identity” URL
  • DNA-100870 [Mac] Create hover strip on left side
  • DNA-100915 [Sync Settings] Confirm your identity to enable encryption message flickers
  • DNA-100943 VPN pro popup can be zoomed
  • DNA-100958 Opera account popup should display actual state of synchronization instead of selected option
  • DNA-101002 Make errors from webpack compilation appear in the log
  • DNA-101045 Popup contents are pushed outside of popup in “Unprotected” VPN state
  • DNA-101076 Disabled Pinboards should have another color in Account popup
  • DNA-101078 Clear obsolete code in
  • DNA-101086 Sync – Clicking Next on does not redirect anywhere
  • DNA-101103 Rich data suggestion disappears after typing its full phrase
  • DNA-101121 chrome.operaAccountPrivate is undefined
  • DNA-101122 Crash at extensions::ExtensionAction::GetPopupUrl(int) const
  • DNA-101124 ‘Secure More Devices’ link should be at top of popup
  • DNA-101125 QR code image blurry at 200% DPI
  • DNA-101127 [Linux] Update FFmpeg snap interface to chromium-ffmpeg-108372
  • DNA-101130 Cache resources IDs from chromium
  • DNA-101135 Save consent settings and allow to change them
  • DNA-101150 Consent pop up flow doesn’t display at first and flickers on mac
  • DNA-101153 Scrollbar not styled as in design
  • DNA-101163 [Mac] Horizontal separator not visible
  • DNA-101172 Add build target for creating `.xmb` files
  • DNA-101181 Sidebar gets autohidden after opening sidebar setup
  • DNA-101182 Sidebar is not hiding after closing panel with UI click
  • DNA-101186 PeopleHandlerTest.NoPassphraseRequiredOnEmptyEncryptionToken fails with kFeatureOperaAccountPopup disabled
  • DNA-101188 Sidebar wont hide after page interaction
  • DNA-101189 [en-GB translation] Force dark theme on pages typo
  • DNA-101190 Clear unused theme definitions
  • DNA-101191 Tests for Opera Account popup
  • DNA-101194 Fix dark mode
  • DNA-101199 Sidebar gets hidden when pinning sidebar panel
  • DNA-101205 Add check for empty ifdefs
  • DNA-101208 Recolor the vpn-pro popup for GX

Homepage –

Opera System Requirements:


  • Windows 7 or later
  • Intel Pentium 4 / AMD Athlon 64 processor or later with support for SSE2


  • OS X El Capitan 10.11 or later


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