Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Thunderbird 38.7.0 on W10 shows date format of mm/dd/yyyy and I cannot change it to dd/mm/yyyy as I require. I have it in dd/mm/yyyy in W10 system

  • 1 reply
  • 14 have this problem
  • 6 views
  • Last reply by skatuli55

more options

I am running Windows10 with Thunderbird 38.7.0 and cannot change the date format to what it was in Win8. I have the format dd/mm/yyyy in W10 and it is showing as such in the calendar in bottom right of screen but does not appear to be picked up in Thunderbird. I have tried resetting in both T'bird and W10 but to no avail.

I am running Windows10 with Thunderbird 38.7.0 and cannot change the date format to what it was in Win8. I have the format dd/mm/yyyy in W10 and it is showing as such in the calendar in bottom right of screen but does not appear to be picked up in Thunderbird. I have tried resetting in both T'bird and W10 but to no avail.

Chosen solution

I have just solved the problem by getting out of T'bird, resetting the format in W10 several times and then opening T'bird again. While it has fixed the problem, it has not solved the mystery of how it happened in the first place as the format was correct (to my settings) yesterday and just came up incorrect this morning, while the W10 display was still OK.

Read this answer in context 👍 9

All Replies (1)

more options

Chosen Solution

I have just solved the problem by getting out of T'bird, resetting the format in W10 several times and then opening T'bird again. While it has fixed the problem, it has not solved the mystery of how it happened in the first place as the format was correct (to my settings) yesterday and just came up incorrect this morning, while the W10 display was still OK.