firefox Firefox 3 CPU issue: del.icio.us extension to blame By : mdubinko June 28, 2008June 29, 2008 0 Several folks, including me, have experienced increased CPU usage on Firefox 3, especially on OSX. Try disabling it, going back to the bookmarklet. -m bookmarklet Post navigation Previous Previous post:Next Next post: Related Posts WFH March 1, 2013 Why I am abandoning Yahoo! Mail (and why you should too) January 5, 2011