Claria...? Gator...?

Some years ago, an application called Gator that could be downloaded for free on the internet, promised to make your internet experience easier and better by storing your passwords so that you didn't have to remember them every time you logged in to a password protected area (e-mail accounts, etc.) This application became rather popular among a variety of unsuspecting users who, unbeknownst to them, were sending valuable information to a third party. This third party (Gator) superimposed their own ads to the sites Gatorified people navigated.
You might argue that you don't really pay attention to ads (regardless of it being a disloyal business practice), but still there are a few things you should take into account before disregarding the importance of this invasive practice.
a) They were sending information about you to a third party behind your back and in the vast majority of cases, without your knowledge.
b) They were storing your passwords! True, they were being stored into your computer, but that doesn't mean they couldn't have access to them. Such a practice can potentially mean an application developped by them or anyone else can access private accounts such as your banking, credit records, paypal, ebay, etc.
c) They didn't inform you of this correctly.
d) Gator was hard to remove single-handedly.

Later, Gator (enjoying quite a bad reputation after their business practices became better known) changed its name to Claria, but they didn't change their ways. Taking their scum into the next level of corporativeness they decided to enlist major sites among their supporters, and continued to push their ads on top of regular ads, as well as they continued to gather information about you and your navigation habits. Now the adware was embedded in other "attractive" software, like for example Kazaa (p2p client) which people installed blindly and used blindly, ignorant to the fact that while they were downloading the latest U2 song, information about them was being widely transmitted over the net.

Claria/Gator/GAIN is one of the major scumware providers on the internet, infesting hundreds of thousands of computers with their privacy menacing software. Additionally it has been noted that their practices don't meet their lawyers claims.

You can read more about Claria/Gator here.
Additionally I strongly recommend that you NEVER store passwords anywhere other than in your head if you value your security and you NEVER use such kind of software/features ("remember password") if you don't want to find yourself in varying degrees of chaos. (That includes "Roboform")

You probably heard about identity theft on the internet and how fast it is becoming common while governments fail to do anything notable to counteract it or help the victims. Such "remembering" applications might possibly be the perfect vial for these crimes, and if you install them your are exposing yourself to serious danger.