Hello Linux Geeksters. As you may know, Firefox 36 has been released a while ago, coming with support for HTTP/2, the native support for HTML5 YouTube playback feature has been added but it is disabled by default, brings a feature to synchronize the pinned tiles from the new tab page and the 1024-bit RSA keys have been phased out.
Unfortunately, it does not come with GTK3+ Firefox UI support, but the Fedora developers are working at a GTK3+ version of Firefox.
Recently, Firefox 36 has been added to the default repositories of Fedora 21 and Fedora 20.
So, in order to successfully install Firefox 36 on Fedora, you have to update your local repository index and install the firefox package. Like this:
$ sudo yum update
$ sudo yum install firefox
Optional, to remove firefox, do:
$ sudo yum remove firefox