Mozilla Firefox trial rudiment

Today, I downloaded the most popular, supposedly safest browser, Mozilla Firefox for trial.

I personally feel that it is not as good as imagined, the default settings, its Adblock even all with ad,banner files are filtered out not to show. And the support of the blog is not very good, display layout is very confusing (although in IE good), published blog when simply do not let you input information, this is too much. We use the browser is the most basic is "available", in order to secure the use of people, it can not be justified ah.