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Firefox ESR 115 using wrong timezone in Alberta, Canada?

Firefox Sprog
jbr svarede 2 timer siden
jaydot
jaydot

Since Alberta adopted permanent daylight savings time / Alberta Time on Nov 1, Firefox ESR 115.44.0 and 115.45.0 on macOS have displayed the wrong time by one hour (i.e. UTC-7, instead of UTC-6). My system time (set to automatic) updated to the new time zone and displays the correct time, as does Safari. I’m not using a proxy / VPN, and don’t have “Resist Fingerprinting" enabled.

(I’m guessing all of the Canadian provinces and territories that adopted similar time zone policies this year have the same issue, although I can’t confirm firsthand.)

Any help is much appreciated!

Since Alberta adopted permanent daylight savings time / Alberta Time on Nov 1, Firefox ESR 115.44.0 and 115.45.0 on macOS have displayed the wrong time by one hour (i.e. UTC-7, instead of UTC-6). My system time (set to automatic) updated to the new time zone and displays the correct time, as does Safari. I’m not using a proxy / VPN, and don’t have “Resist Fingerprinting" enabled. (I’m guessing all of the Canadian provinces and territories that adopted similar time zone policies this year have the same issue, although I can’t confirm firsthand.) Any help is much appreciated!

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Alle svar (1)

jbr
jbr
  • Bidragsyder i top 10

Since 115 ESR is only getting essential security updates, it's not known whether it can support the international databases in their present–day form, so it had only early 2026 zone info updates (the Canadian ones came in later) and the more recent changes were excluded: https://bugzilla.mozilla.org/show_bug.cgi?id=2058419#c45

You can file a bug for that, to see if there's interest, and a will to spend some extra effort on it since its scheduled End–of–Life is in about three months now.

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