Firefox blocked the Adobe Flash plugin earlier this week. I took that as a sign and uninstalled Flash from my Mac completely. To my surprise my online experience is 99% the same as with Flash installed.
Adobe Flash got hit by a new wave of security vulnerabilities over the past weeks. This renewed the call to kill Flash and use HTML5. On July 14 Mozilla started to block the Adobe Flash plugin by default. This pushed my to uninstall Flash completely from my iMac and I wanted to see what happens. After more than two days of my usual work and recreational use of the web, I can say that there is no difference for me.
Only one time I saw a popup on a site asking to install Flash. I did not encounter broken ads as advertising networks sense if Flash is installed and if not they serve an alternative banner using for instance HTML5. Youtube and other streaming services like Netflix also just work like before.
This means that the implementation of HTML5 is already very widespread. I don't see a reason why to have Adobe Flash installed anymore. You only encounter it at special purpose sites like interactive sites for multimedia, commercials, games and music videos. There is a large media developer community that is set on using Flash to develop advanced interactive pages.
Adobe's Flash Profession CC developer tool can actually export in HTML5. It it is not quite clear to me what the limitations are and why not more interactive sites are doing this. Maybe a Flash developer can chime in here in the comments below.
The Occupy Flash movement tries to create a grass root movement to uninstall Flash and clean the web from it. The legacy install base of Flash is though huge and most Internet users do not even know that they have it as it comes pre-installed in browsers like Microsoft Internet Explorer.
Firefox has reinstated the Flash plugin yesterday as Adobe fixed security issues in a new version of the plugin.
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If you don't fancy playing around with fancy interactive pages you can uninstall Adobe Flash today and have one security risk less on your computer. Adobe offers an Flash Uninstall tool for Mac and Windows.