Hi, I rarely use Firefox and on this PC I only access websites for work and have full antivirus since PC installation. See attached screenshots... Since few days ago Firefox suddenly started being slow and on some websites like www.3dcontentcentral.com (a 3D CAD website) when I type a search instead of providing results practically immediately as it did until a few days ago, the following happes: 1) it takes ages to get the results 2) in the bar at the bottom left of Firefox (where it shows what Firefox is doing in real time) it shows "transferring to...." and it scrolls through MANY different websites which have nothing to do with the website I am on (i.e. 3dcontentcentral.com), such websites includ Facebook and others with random characters. That does not happen with any other browser. AND I never accessed Facebook from this browser anyway and 3dcontentsentral.com has no reason to connect to Facebook or the other websites shown att he bottom. That happens even if I run Firefox with ad-ons disabled. Only Adons I have are Duck-Duck and Ad-Block Plus BTW, the only thing I have done was install duck-duck few days ago but the idea of duck duck. If anything that should have made the system more secure not less... :o As mentioned I am always extremely careful to never click on any unknown or even remotely suspiscious website and aso have VPN and full business antivirus. What is going on? Thank you for all feedback :)