Until recently Firefox worked very quickly and then all of a sudden freezes or take an very long time to find a web site which previously it found 'instantly'. I have not changed any settings on the computer so am at a loss to know what to do. I have read various messages on the web about this common problem and have cleared the 'History' etc., but that seems to only make things work for one search. The message showing states a TLS handshake is being undertaken. Any help would be gratefully received,