Firefox is my preferred and default web browser and it has just updated itself and I don't like what it has done. Apparently it is faster and sleeker. That may well be, but I was very used to the layout of the old Firefox and I am somewhat annoyed. I suppose I will get used to most of the changes, but still.
My group of buttons, including Home and Refresh, have been moved. Refresh is a circular arrow at the right of the address bar and home is on the far right. I used to have them both on the left.
I am not sure what it is called, but the activity bar at the bottom only shows when a webpage url is being hovered over and clicked. I like it right across the bottom.
I am not a tabber. I don't use tabs. I have tried, but I just don't like them and I can see no benefit to me. I right click on a link and open in a new window, but in the right click menu, the order of open in a new tab and open in a new window has been transposed. All day I had been opening new tabs and forgetting and wondering why new windows weren't opening. And then I would click on the x to close the window I was reading and closed all of the tabs I had open.
Maybe you can tinker with it and return it to something similar to what you were used to, but the method is not immediately obvious to me.