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100 % CPU usage by Firefox if the PC has been in sleep mode over midnight

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Sivullinen
Sivullinen
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If the PC has been put in sleep mode, occasionally after wake-up Firefox uses initially 100 % CPU time and CPU usage remains exceptionally high. Making a new sleep/wake-up cycle (usually?) clears the situation. It may appear weird but it seems to be that the problem arises (mostly?) if the PC has been in sleep over midnight (i.e. 23:59:59 -> 00:00:00). It's not Firefox version specific, the problem has been around for a long time and over numerous Firefox version. (EliteBook 8540w, Windows 7)

If the PC has been put in sleep mode, occasionally after wake-up Firefox uses initially 100 % CPU time and CPU usage remains exceptionally high. Making a new sleep/wake-up cycle (usually?) clears the situation. It may appear weird but it seems to be that the problem arises (mostly?) if the PC has been in sleep over midnight (i.e. 23:59:59 -> 00:00:00). It's not Firefox version specific, the problem has been around for a long time and over numerous Firefox version. (EliteBook 8540w, Windows 7)