I use this all the time, it's invaluable. I also use it to remove sticky headers, which I find to be deeply annoying because they waste space and often break ke

I use this all the time, it's invaluable. I also use it to remove sticky headers, which I find to be deeply annoying because they waste space and often break keyboard scrolling by scrolling the next few lines of text under the header. In Firefox I've assigned it a keyword shortcut, so I can type `ctrl + l` to select the address bar, then `ks` `<enter>` to execute the JS without having to click.