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由 Firefox 用户 da7dfe 发表于 Jan. 10, 2012 · 永久链接

A millisecond precision is pointless here. Users I think find it short, medium or long to have an application start, but don't require a stopwatch precision.
All add-ons are worthy for the commitment of their author but, frankly, some are really totally useless. IMHO of course.