If you browser auto jump to pages or pop-up pages related to
Ad.doubleclick.net which often plays ad on it, congratulations your browser has been hijacked.
It’s annoying, isn’t it? Can’t browse what you like, some ads actually persuade you or clicking by mistake to download or purchase. Browser is like an extending of your eye, isn’t it? surely we don't want anything else to take control of it.
Ad.doubleclick.net is an advertising site. The hijackings succeed when add-on is being installed bounded with and protected by other malware or adware. That’s why sometimes disabling all the add-ons won’t work. This hijack might take place on Internet Explorer, Mozilla Firefox, Google Chrome and many other browsers.
To prevent hijacker like this, one thing you should always keep in mind is carefully installing. Firstly, we have to pay attention to the download source of the installation package. Always download the source from their official website if possible. Otherwise download them from the trusted site. Secondly, watch out while installing, the hijack usually take place in this step, kill it with task manager if it is doing anything weird to stop further infects to your computer. See clearly what the installer is doing, if there is any option to uncheck. Choose custom setting first to see what the experience, recommend or what else they call is going to do on your computer. That’s something inject into your computer, so take care.