If you want them to fix it: 1) Generate a profile performance with https://profiler.firefox.com/ https://profiler.firefox.com/ 2) Submit the link with your re

If you want them to fix it: 1) Generate a profile performance with https://profiler.firefox.com/ https://profiler.firefox.com/ 2) Submit the link with your results to https://bugzilla.mozilla.org/ https://bugzilla.mozilla.org/