Been using Firefox for maybe 20 years now.. But with each update it seems to be getting worse and worse. Deleting history is totally busted and when the deleted history window pops up it gets stuck suring the cleaning process, when I hit the CLEAR tab it locks up so badly I have to Apple/force quit every time just to regain control. Now it can not load Youtube pages at all. See screen shot below as to my my Youtube looks now. 90% of the page content and data is missing. I don't have any plugins or addons and I have tried clearing the cache endlessly but that freezes the whole browser. The browser is also getting very sluggish and slow and often entire tabs just shut themselves down randomly right in the middle of when I am filling in complex online forms so I end up losing everything. I'm stuck in a loop of brokenness.