A very nice feature of Firefox is possibility to install add-on that we need. This possibility reflects Firefox adaptability to our requirements and our hardware specs as well. If you only need a plain Firefox to surf Internet without additional feature it’s fine and already equipped with all feature of security which gives you protection against exploitation. But if you have specific requirements, for example email notification then you have a wide possibility to increase Firefox’s feature with add-on.
I think it is good idea to share about Firefox add-on installed on my computer, so you can use it as well. Feel free to add more add-on that I have not listed at the moment, because your information could be useful for me and for other visitor.