Updated to v57 then v58, and under both versions FF loads slow and runs slow. Checked the support forums and tried the predominate fix for this: reset assessability parameter, but without any improvement. Running Win7, SP1 I have been defaulting to Chrome, but would prefer to stick with FF. This problem only appeared after my upgrade to ver. 57. Maybe I need to roll back to an earlier version at expense of security ??? Any specific recommendations on this specific problem would be most appreciated. Thank you.