wagesj45, Sad to report that I have had to go back regular #Firefox from #Mercury. Unfortunately Mercury has a #bug that causes increased CPU usage on at at least 2 cores, with degrading performance over time. There are also #build issues currently blocking both Mercury and #MercuryAlloy from building successfully. I'll keep checking back to see if that gets resolved. But for now, back to #MozillaFirefox.