The update removes some ad blockers and other stuff they used to support; staying with the current version.
Wonder if the update fixes a bug that firefox recently introduced, which may or may not affect other firefox based browsers like Pale Moon and Basilisk.
My Linux version, 71.0, works just fine and will not be updated. I went down that path once before and it got so bad I had to switch to Chrome.
You can use ublock plugin to block ads or any image.
I updated Firefox and in many cases the mouse will not scroll pages. I normally use the scroll wheel of the mouse but I have to drag the scroll bar using the mouse now. Too slow and not convenient.
Many complaints over the years with Firefox. You would think scrolling would be a basic function.
https://tinyurl.com/sgcjna2