For many years, Firefox is my development browsers because I thought I would run into perf issue, problematic/weird behaviour more often. But recently I develop

For many years, Firefox is my development browsers because I thought I would run into perf issue, problematic/weird behaviour more often. But recently I develop on app on Firefox for many months, then test it on Chrome, dang! It's almost 3x slower (rendering lots of dom nodes). So now I've switched to Chrome for development because if it's fast on Chrome it's going to be very fast on Firefox.