Javascript based clocks can tick backwards
In Tor Browser, pages with a clock or timer sometimes appear to count backwards, which can cause problems. Firefox does not have the same behavior. I suspect this is caused by patches to reduce timer precision. Please provide a pref or way to disable this behavior and obtain monotonically increasing time with full precision.
I understand the original reasons for the patch(es) in question, but the reduced precision is not good for all purposes.
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