I often have 20 or more tabs on three or more windows in Firefox. But with i7, 16Gb of Ram and a 512GB SSD, I don't understand why Firefox has started beach balling w/ Activ. Monitor showing well over 100% CPU for Firefox often. Rebooting FF and the Mini and freezing is still back soon. I did the Firefox Refresh and that did not help. I read a bit about creating a RAM disk, but not sure if that would help (or if my purchased used mini already has that set up)? - First shot is Activ. Mon.- Memory - Second is a shot of my cache memory normally running FF. - Third shot is my cache memory running FF in Safe Mode. ( In FF Safe Mode I think I have not frozen yet, but I do have somewhat less tabs open.) ( I don't know what most of the info means) As I was looking at the 'about:config' change options, I only changed the 'browser.sessionhistory.max_entries' from 50 to 30. 'browser.cache.disk.enable' is (and was) set on default /True 'browser.cache.memory.enable' is (and was) set on default /True I love the idea of using a dedicated RAM Disk if it will help this issue, especially if the contents would auto save to the OS's SSD at system shutdown. I don't want to blindly make changes I do not understand. Any insights or pointers would be greatly appreciated.