And for the longest time I thought XUL was the biggest downside of firefox. When the browser got slow not only did the render view get slow, but the "native" gu

And for the longest time I thought XUL was the biggest downside of firefox. When the browser got slow not only did the render view get slow, but the "native" gui as well. Really frustrating and also contributed to the very clunky feel and a pretty ugly somewhat-native UI. It wasn't until I realized they also rendered the UI with gecko that I understood why they were having so much issues with it. Much better now thankfully.