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Wrong timezone

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How do I change the timezone setting is Firefox? It is 2 hours out and I can't find the setting for this. My emails have the incorrect time stamp on them. My laptop settings are set to the correct timezone of Melb/Syd Australian time, but Firefox doesn't correspond to this.

How do I change the timezone setting is Firefox? It is 2 hours out and I can't find the setting for this. My emails have the incorrect time stamp on them. My laptop settings are set to the correct timezone of Melb/Syd Australian time, but Firefox doesn't correspond to this.

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This is usually a feature to protect you from browser fingerprinting. Disable it by going to about:config in the address bar and changing privacy.resistFingerprinting to false.

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Do you have this problem on all websites? On some sites, the problem may be caused by time zone or daylight savings/summer time preferences in the site's own options/settings screens.