Google Chrome
I installed Google's web browser Chrome and liked it so much that I made it my default browser. However, I decided to go back to Firefox because I miss all its add-ons, like the ability to block GoogleAds (surprisingly a Google browser won't let you do that!). I found that the only way I could change the default browser was to uninstall Chrome. Then I found that making Firefox the default wasn't as straightforward as I expected. The Main screen in Firefox Options where one normally finds a button to set Firefox as default was not visible because the entire window is truncated thus removing the button from view. The window can't be resized either. I'm not one for conspiracy theories but ...
Rgds