Flash Player is dead.
Its time has passed. It's buggy. It crashes a lot. It requires constant security updates. It doesn't work on most mobile devices. It's a fossil, left over from the era of closed standards and unilateral corporate control of web technology. Websites that rely on Flash present a completely inconsistent (and often unusable) experience for fast-growing percentage of the users who don't use a desktop browser. It introduces some scary security and privacy issues by way of Flash cookies.
Flash makes the web less accessible.
At this point, it's holding back the web.
Why, you ask? Why does it matter, when Adobe has already neutered the platform by publicly killing Flash on mobile devices
? Why does it matter when HTML5 has clearly won the fight for the future of our web browsing? Well, as we've seen with other outdated web technologies (most notably the much-lamented Internet Explorer 6), as long as software is installed on machines, there will be a contingent of decision makers who mandate its use, and there will be a requirement of continued support, the plugin will live on, and folks will continue to develop for it. Also, for unknown reasons, Adobe is still sticking with Flash as a desktop browsing technology.
Disabling Flash Player in your browser will likely mean that some of the sites you use regularly are less usable (We're looking at you, Google Analytics
. For shame!).