Fissa.com is typically a
browser hijacker that can cause lots of troubls. Fissa.com is generally bundled with third party program distributed on those unsafe websites. If you download and install the program into your computer without paying too much attention, Fissa.com will be installed into your computer easily. So, here I suggest you to pay attention to the installation process when you try to install a new program into your computer.
Once it sneaks into your computer successfully, lots of default settings including the homepage of browser will be changed without your permission. Meanwhile, tons of plug-ins and extension associated with some advertising agency will be implanted into your browser. In this case, your browser including IE Firefox, and Chrome, once it is been launched, will give you all kinds of pop-ups and other advertisements, and if you click its affiliate links, your browser will be redirected to another websites forcibly to generate its traffic. Then, Fissa.com creator can get some money. Meanwhile, those ads displayed on your computer can be a fake or scam for which Fissa.com creator has no responsible for it.
Anyway, if you find this Fissa.com on your computer, I suggest you to get rid of it from your computer as soon as possible. Now, you can follow this article to learn how to remove Fissa.com clearly.