For reference, here is the link from yahoo:
https://www.yahoo.com/tech/what-is-adobe-flash-and-how-can-you-get-rid-of-124087958879.html
Google and Mozilla each announced this week that their Web
browsers will be dropping default support for Adobe Flash, citing the plug-in
software’s newly discovered vulnerabilities to cyberattacks. These moves came
only a few days after Facebook’s chief of security called
for Adobe to set an “end of life” date for the oft-exploited 20-year-old
platform.
Even
if you don’t exactly know what Adobe Flash is, this is important news. Whether
you know it or not, odds are pretty high that Adobe Flash is on your computer
right now, possibly putting your system and your personal information at risk.
Don’t
panic. Take a deep breath and read our Adobe Flash security threat guide. We’ll
help you figure out why it might be best to banish Flash from your life, just
like Google, Mozilla, and Facebook want you to do. And we’ll tell you how to go
about doing exactly that.
So
what is Flash, exactly?
Adobe
Flash is a software platform that runs video, animation, and games inside of
Web pages. Flash was born at the dawn of the Web in 1996 and quickly became the
standard for Web video, especially after a little startup called YouTube began
using it in 2005. But now it’s largely obsolete, as most Web sites and apps use
different technologies for the same purpose.
Why
is Flash a problem?
The
very thing that made Flash so popular — its ability to run complex scripts from
websites you visit — can also be used for malicious purposes.
Computer
scripts written in Flash can directly access the memory on your computer, which
is just inviting attacks, or “exploits,” says Chase Cunningham, a cyberthreat
expert at security company FireHost. “Anytime a site is able to access your
computer’s memory, it’s able to make changes on the local machine itself [your
PC]. That’s when you run into exploits.”
Flash
has long been one of the biggest attack methods of choice for cybercrooks and
spying governments, as security vulnerabilities turn up on an almost daily
basis. Just this month, Adobe put out security alerts and fixes for 38
vulnerabilities in Flash Player. Last week, it came out that a company called Hacking
Team had been using previously unknown flaws in Flash to create spyware
that it sold to oppressive governments in countries such as Sudan and Saudi Arabia.
Flash
also uses up a lot of computing resources and can bog systems down. “We … know
firsthand that Flash is the number one reason Macs crash,” wrote Steve Jobs in an
Apple blog post from April 2010.
Do
I have Flash on my computer?
You
probably do — especially if you are using a Windows PC, rely on an older
browser, or were prompted by a Web site to install it.
In
October 2010, Apple announced that it would no longer install Flash Player on
its computers — including its Safari Web browser — although users could install
it on their own if they wanted to.
![image]()
(BBC)
The latest version of Mozilla Firefox launched with a block for Flash
Player (though after an update Tuesday by Adobe, Mozilla has re-enabled
use of the plugin in its browser). Google’s Chrome browser comes with Flash,
but it is disabled by default.
However,
you may have installed or enabled Flash Player if a website prompted you to. “I
would say probably 97 to 98 percent of systems out there have some version of
Flash running on them,” said Cunningham.
You
can visit this page on
Adobe’s website to see if the computer you’re using has Flash
installed.
What
about my phone?
Chances
are good that Flash is not on your smartphone or tablet.
Apple
completely banned Flash from its mobile devices running the iOS operating
system, such as the iPhone, iPad, and Apple Watch. Apple’s rejection of Flash
helped spur Web and software developers to use other technologies for
delivering video or animating games.
Google’s
Android mobile software briefly supported Flash, but it was generally choppy
and used up more battery than other formats. In 2012, Adobe dropped support for
Android, and Flash has been absent since Android 4.1 (Jelly Bean), which came
out that same year. (Adobe also dropped support for BlackBerry and Windows
Phone.) If you have an iPhone, or any other smartphone bought in the past
couple of years, you don’t have Flash.
Don’t
I need it on my computer?
Generally
not. Most websites have switched over to another video format, called HTML 5.
It’s the default on both YouTube and Vimeo, for example. So unless you know you
need Flash for a specific site, it’s best to uninstall it or block it.
How
do I get rid of this nasty thing?
For
Internet Explorer, follow Microsoft’s
instructions for how to turn off or remove add-ons.
![image]()
Chrome.
For Chrome, see Google’s
instructions specifically for disabling Flash Player.
If
you have Safari on a Mac, follow Adobe’s
own instructions for removing it.
For
Firefox, type “about:addons” into the browser’s address bar, click Plugins on
the left side of the page, scroll down to Shockwave Flash, then click the
dropdown menu on the right and select Never Activate. With Firefox, you can
also install a Web browser extension called NoScript, which
blocks not only Flash but also other scripts that attackers can exploit, such
as JavaScript.
Once
Flash is gone, will older videos still play on my computer?
If
a website requires Flash to display videos or animation, you will need to
install Flash to watch it. There’s no way around that.
It’s
typical for Flash-based sites to display alerts when they detect that Flash is
not installed. If you see this — and you absolutely must view that video — we
recommend downloading and installing Flash directly from Adobe.com,
as fake installation popups that lead to spyware are an age-old trick employed
by untrustworthy websites.
![image]()
Firefox.
Luckily all the popular Web browsers allow you to temporarily install or
enable Flash for only the times you happen to need it. So if you’ve installed
Flash to view a website (many U.S government sites use it, for example), it’s
probably a good idea to disable it as soon as you are done there.
So
that’s everything you need to know about the risks and rewards of the Flash
dance. Considering all the above, conventional wisdom dictates that living
Flash-free is probably worth trying. After all, if you didn’t know what Adobe
Flash was before reading this article, there’s a good chance you won’t miss it
once it’s gone.
UPDATE:
Adobe has released a new version of Flash that Mozilla Firefox does
not block by default.