Whenever I open a new tab or window, I'm greeted with the Firefox home screen, which displays various shortcut tiles. Currently, I have a shortcut for Amazon, which includes a handy blue magnifying glass symbol 🔎 indicating it's a search shortcut and not a shortcut that will take me to an URL. I'm looking to set up similar search shortcuts for YouTube and Google. I've attached an image below for reference. If anyone is familiar with how to customize these search shortcuts in Firefox, your guidance would be greatly appreciated. Please let me know if you have any tips or steps to follow.