Using Nightly UX, Firefox freeze for some seconds writing emails, then type every letter you typed. About:support raw data: http://pastebin.mozilla.org/3610705
Can you please capture a profile of this so that we can try to fix it? Please see <https://developer.mozilla.org/en/Performance/Profiling_with_the_Built-in_Profiler>. Thanks!
Still happening? If not, care to resolve?
Seems it works fine now (last Nightly)
Thanks -> resolving.