<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">Firefox often has a pop-up window asking if I want some website to contact a different website. I routinely click "no" or more likely "never". </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">A couple weeks ago, a feature on a particular website stopped working. I realized the I had blocked something I probably didn't want to block. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">So where is the list of sites to unblock? I can find things like allowing or blocking cookies from certain sights. No-script has a menu for controlling sites. I haven't been able to find the controls regarding one site trying to access another.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div></div></body></html>