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Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Article Visits Status Needs Update Ready for L10N Stale Expiry Date
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Live Yes Show translations
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Live Yes Yes Jul 9, 2026 Show translations
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Live needs review by Wayne before setting RFL No Show translations
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Profiles - Where Thunderbird stores your messages and other user data 3,186
Live NIT :-) : Change TO: `Simultaneous access to any part of the Thunderbird profile folder, via a file share (like SMB/Samba) cloud storage (like Dropbox) or any other method, is NOT supported. Doing so risks corruption and permanent loss of data.` Yes Show translations
Move Thunderbird data to a new computer 2,864
Review Needed: Update instructions for the alternative method. Yes Show translations
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