"Since however applications and programs are typically
installed at the operating system level instead the browser, this
doesn’t sound to be such a useful feature, doesn’t it?
"One of the clear advantages of the Mozilla Firefox browser is
its huge repository of third party extensions, called
“Add-ons“. They are mostly developed by third party
developers and provide an easy way to customize and extend the
browser according to specific needs. Those additions may be
automatically updated like the browser itself, making their
maintenance fairly easy and convenient."