The Tor Browser is a cross-platform portable Tor client integrated with a browser (based on Firefox Extended Support Release). It is 100% FLOSS software and includes privacy-related extensions like Privacy Badger and NoScript out-of-box.
Ranked in these QuestionsQuestion Ranking
Pro Tor sets the standard for safe and private browsing
If you follow their instructions religiously, Tor is the nec plus ultra in terms of safety and privacy. For the time being at least.
Can be installed and run on a portable device such as a USB stick.
Pro Access hidden .onion sites
Pro Relatively fast
Pro Free and open source
Pro Uses the Tor network
Pro NoScript and HTTPS Everywhere installed by default
Con Must adapt new browsing habits
It is not recommended to do several things TOR browser that users would want to do in a normal browser, such as visiting social networks and banking.
Con Extremely slow
Caused by the tor network the browser depends on.
Con Does not guarantee perfect anonimity unlike what most users would suspect
Con Not made as your daily browser
It does not support many modern features due security and is pretty slow.