Mozilla has begun blocking Flash in a recent update, due to serious security vulnerabilities recently revealed to exist in Flash.
The user still has the option to unblock Flash for individual sites, but overall Flash will not just run whenever it is called in the browser. As far as Mozilla is concerned, this is a necessary move for the security of their users.
Several bugs were unearthed in the dump of Hacking Team’s archives recently, and these were unpatched bugs that an attacker could take advantage of to compromise a Flash user in Firefox or any other browser. While Adobe says, it takes the bugs “very seriously,” no one wants to trust Flash at the [...]
In a move that may just be the final nail in Adobe Flash Player’s coffin, the YouTube engineering team recently announced that YouTube will now stream videos using HTML5 by default for Chrome, Internet Explorer 11, Safari 8, and beta versions of Firefox.