I love this extension, but it does seem to slow down the process of opening my browsers. On Chrome I'm continuously getting the message that my dials are being rebuilt because something caused them to malfunction, and then sometimes it takes an enormous amount of time for Chrome to open. All I get is a white page. For that reason I switched to Firefox on my laptop because this situation was so bad. Firefox is a little better, at this time anyway, than Chrome with this extension.