If Mozilla ever discontinues development, it would be a massive loss or the FOSS community and folks not wedded to the Microsoft OS or MSOffice platforms. This cannot be done in TB as it allows monthly, but does not provide a specific week/day, instead defaulting to the same DATE of each month. Outlook calendar, Outlook allows far more flexibility for repeat scheduling, such as the 3rd Tuesday of every month. Plus a TB profile works identically and interchangeably on a Windows or Linux machine. This facilitates a truly easy duplication of my Thunderbird data (including emails) to any new installs, other systems, or in case of disaster. Now that I am using TB on all my systems, I just do a manual full Thunderbird (and Firefox) profile backup on a bi-weekly basis to a USB drive. I am sure that was NOT the easiest and fastest (or even correct) way to accomplish the task, but it worked for my purposes. Once I saw what actually went where, I opened the CSV file in Excel and moved the data to the correct location and did a re-import.

To fix the issue, I looked carefully at which field went where and then did different EXPORTS of the Outlook data into a both a TXT file and into CSV files and then imported them into TB. Using the relatively simple Thunderbird import tool worked, but due to differences in data field terminology between Outlook and TB, some data was in the wrong data field in TB. For closer contacts and friends and relatives, I had lots of info in the Outlook 2010 Address Book. HOWEVER, getting a precise matchup of ALL the data fields can be a challenge, especially if you really made use of a lot of the available fields and features in Outlook with addresses, multiple contact numbers and alternative emails, birthdays, etc.įor the majority of my contacts, I had minimal info entered into Outlook beyond the Name and Email. Yes, you can import your Outlook address book into Thunderbird.

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