macOS Sierra Closes Flash’s Coffin Lid, Keeps Safari Plug-in Disabled

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As if we don't already have a long enough list of reasons why Flash shouldn't be installed on our Macs, Apple is giving us yet another with the introduction of macOS Sierra: Flash in Safari will be disabled by default. That means the decreasing number of Websites relying on Flash, like the BBC, will finally realize we aren't living in 2002 any more.

Adobe's Flash is dead and blocked in macOS SierraAdobe's Flash is dead and blocked in macOS Sierra

Apple considers Flash a legacy plug-in and Safari in macOS Sierra will act as if it isn't installed. That goes for some other plug-ins such as Silverlight and QuickTime, too, but Apple is calling out Flash in its WebKit notes.

Since Flash isn't installed with Apple's operating systems, the only time someone should encounter a dialog asking if they want to temporarily enable the multimedia plug-in is if they explicitly install it themselves. Unless there's a specific reason why you need Flash, keeping it off your Mac is for the best.

Flash is a battery life killer and many Websites have already moved on to HTML5 for multimedia content, plus the platform is a major security risk. Flash-related security flaws are discovered faster than Adobe can patch them, and many are so serious that they completely expose user's computers to hackers—including personal data like passwords, photos, and bank account records.

To drive that point home: earlier this week a critical Flash security flaw was discovered that's already being exploited online. The exploit, from a hacker group dubbed "ScarCruft," gives attackers access to all kinds of data on victim's computers and currently is being used to target valuable data from high profile companies and organizations, but there isn't anything stopping the attackers from culling content from other computers, too.

Accidentally installed Flash? Safari in macOS Sierra keeps it disabled by defaultAccidentally installed Flash? Safari in macOS Sierra keeps it disabled by default

Adobe says a patch for the flaw is coming later this week, but that doesn't do much to help people who are already being targeted by hackers.

Considering Flash is seen as more of a blight on the internet instead of a useful platform, it's time to delete it from your computer—assuming you ever installed it. For sites you rely on that still require Flash, let those companies know they need to ditch the platform or you'll move on to their competitors.

Apple abandoned Flash long ago, it isn't supported on pretty much any mobile device, and Google Chrome and Mozilla's Firefox Web browsers are dropping support. At this point Flash's coffin is more nail than wood.

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Flash ain’t gong anywhere except off mobile platforms. It will still be used as a content creator (angry birds for one example) for mobile games and web design. Adobe’s AIR will keep it alive.  It’s still used every day for years on my browsers because most sites use it (of course I wouldn’t use crap Safari anyway) with never a problem. So sorry to see the Mobile world is still having trouble with Flash. There is still no easier app to design vector animations/banners/games than good ol’ Shockwave/Flash.

Lee Dronick

Cuda can Flash export to other formats? Creating in it is fine, using it to view things is not.

Anyway I disagree about Flash not going anywhere, it is has already gone from many websites.


You can export Flash files to say Quicktime - but you lose interactivity which is a very cool thing about creating in Flash-the ability for the end user to interact with the file via mouse/button/gesture. Adobe’s AIR kind of exports to platforms that have a problem or deny Flash.
No Flash - no Angry Birds app, for example; but with AIR it’s available on your iOS/Android stuff. I think a distinction between Flash Player and Flash as a creation tool should be made.

Lee Dronick

I don’t play games, but I see Angry Birds is availble in the iTunes App Store. If Flash doesn’t work on iOS without a work-around then what format is the game?


From Wiki:
<< Adobe AIR allows creation of Flash-based mobile games, which may be published to the Google Play and iTunes app stores. >>
  Pardon the cut-n-paste:  “Adobe AIR (formerly Adobe Integrated Runtime) is a cross-platform runtime system developed by Adobe Systems for building desktop applications and mobile applications, programmed using Adobe Flash, ActionScript and optionally Apache Flex. The runtime supports installable applications on Windows, OS X and mobile operating systems like Android, iOS and BlackBerry Tablet OS. It also originally ran on Linux, but support was discontinued as of version 2.6 in 2011.
  Adobe AIR is a runtime environment that allows Adobe Flash content and ActionScript 3.0 code to construct applications and video games that run outside a web browser, and behave as a native application on supported platforms. An application developed for Flash Player or HTML5 and deployed in a browser does not require installation, while AIR applications require installation from an installer file (Windows and OS X) or the appropriate App Store (iOS and Android). AIR applications have unrestricted access to local storage and file systems, while browser-based applications only have access to individual files selected by users.


Again, to me points to the Flash Player as being a problem with some browsers and mobile; but Flash per sé is no problem. Personally it’s never caused even a hiccup in decades of designing and playing multimedia in Flash (Aldus>Macromedia>Adobe) on my Macs - either from desktops or browsers. Note I NEVER used or created anything for Mobile OS’ per sé.


What the Almighty Steve thought of Flash:


Dang, the page won’t display furbies…... please don’t tell me it’s my Flash lol.  says “page not found” on Apple site.


Try this one:


Cuba try this link:

(Don’t know how the first link got mangled)

Lee Dronick

So in short you have no problem dumping the Flash player while keeping your Flash creation stuff?


6 year old Jobs diatribe..interesting to see the Creator and main proponent of Apple’s “sandbox” paradigm, the same sandbox that completely ruined the iTunes and Music experience on the Mac to cry about ubiquitous Flash.  Sorry Steve, just because you HATE(d) the fact that Adobe licensed the most popular creation tool and format for web animation and interactivity doesn’t make your arguments valid. 6 years later it is still ubiquitous. And H.264? Last I heard those formats are all patent restricted, what about that Steve? (Also Flash fully supports H.264/MPEG-4/H.263 etc. anyway) In 6 years the world didn’t end; Flash is still used extensively for production (see Angry Birds). If it messed with me I’d ditch it in a second - but in my Pro Tools Adobe CS production world of almost 30 years it has never been a problem, as of yet.

Lee Dronick

  H.264 is protected by patents owned by various parties, whose licensing is administered by patent pool MPEG LA. Commercial use of patented H.264 technologies requires the payment of royalties to MPEG LA. MPEG LA has allowed the free use of H.264 technologies for streaming internet video that is free to end users, and Cisco Systems pays royalties to MPEG LA on behalf of the users of binaries for its open source H.264 encoder.

  But the best thing about it is that users don’t have the risk of using Flash.


Flash in the consumer space is dying, dying, never be completely dead, but just won’t matter…


Just checked the following web sites:

All still using flash player and not HTML5. While I agree that HTML5 is the way to go, the adoption of HTML5 is still pretty slow. I’m not sure how one can claim the Adobe flash is dead. Seems more of a death wish than fact.

Lee Dronick

  Just checked the following web sites…All still using flash player and not HTML5.

I just checked the NFL website and because I don’t have Flash installed on my iMac it automatically served up HTML 5 video. Some of these sites are using Flash to support older browsers and are doing a plugin check or something.

Malware developers love Flash


YouTube automatically gives me HTML5. Most other sites give Adobe Flash as the default if the flash plugin is installed.

Seems if there is a concerted effort to rid ourselves with the usage of flash that HTML5 would be offered as the default much like YouTube.

I hear the same argument for Java as need to have it but allot of web sites still use it.


Another problem is going to be government/school/etc. sites. My nephew takes on-line courses on a Mac, and the systems are all run on Flash. (their design also looks 2004) Government entities of all stripes rarely seem to re-code to keep up with the times.


Flash per sé is no problem.

Further proof that Cuda is Bosco in disguise!!

Case closed!!



JustCause Google, Apple and there was also something about Firefox moving to do the same, Is that 70-80% of browsers?

Paul Goodwin

The simple fact is if Flash isn’t going away on Windows, it isn’t going away. There are so many web designers that are still living in that world, and they don’t know how to design without it. And how many online design tools lead the page designer to use Flash? Apple disallowing FLash only limits and frustrates its users. I’ve been commenting to webmasters for years (more than 10) that Flash is holding them back and limiting viewers by dealing out MacOC and iOS users. They don’t care. They’re too dumb to realize it and think the expense of redesigning wouldn’t get paid back. How much widespread damage is really occurring? How much is it really costing Apple to support and protect us from Flash? This is another case where there isn’t enough outcry for anything to happen, and Apple’s approach won’t do one thing to stop it. Until Adobe, Microsoft and the others really give more than lip service to getting it off their products, this world isn’t going to change any time soon.


Currently I think 60-70% of internet traffic is mobile (tablets and phones), with it projected to go higher in the next 5 years. Windows matters less and less, and a web developer who doesn’t keep up with the mobile trend will be out of a job. Put on top of that IE/Edge are down around 30% of Desktop share and the other 70% moving to block Flash by default it wouldn’t look to be a growing market. But like I stated previously, it will never die, but sites that use it will become experience like sites with the badge label, best viewed with Netscape.

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