Is the Thunderbird version number stored in the AppData somewhere please??
Fortunately I have the hard drive from the Win 7 laptop as it was the motherboard that failed - but now find myself with Win 10. I have researched online to see how I can discover what version I was running on the Win 7 but can't find an answer. I can find the user\appdata\ - if I could simply find what was the older version, uninstall the present loaded version, find and load this older version then presumably I could simply transfer the old AppData into the correct area of Win 10? I don't want to lose all my emails. contacts etc etc and the 68.8.1 version files look very different from the version on Win 7 - I've been using it for a long time Is the version number stored in the AppData somewhere please?? Thanks Suzanne
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Since the version of TB on W7 can't be newer than the version on W10, 68.8.1, you shouldn't have any problem copying the Thunderbird folder from ../AppData/Roaming on the W7 drive, deleting the current ../AppData/Roaming/Thunderbird folder in W10, then pasting the W7 Thunderbird folder into AppData/Roaming. There might have been problems if the W7 TB was newer than the W10 TB, but that's not the case here.
https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer
But to answer your question, there is an updates.xml file in C:\ProgramData\Mozilla\updates\8216C80C92C4E828, where the 8216C... string may be different on your computer, that can be viewed in a text editor. The TB version history is shown in this file.
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Since the version of TB on W7 can't be newer than the version on W10, 68.8.1, you shouldn't have any problem copying the Thunderbird folder from ../AppData/Roaming on the W7 drive, deleting the current ../AppData/Roaming/Thunderbird folder in W10, then pasting the W7 Thunderbird folder into AppData/Roaming. There might have been problems if the W7 TB was newer than the W10 TB, but that's not the case here.
https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer
But to answer your question, there is an updates.xml file in C:\ProgramData\Mozilla\updates\8216C80C92C4E828, where the 8216C... string may be different on your computer, that can be viewed in a text editor. The TB version history is shown in this file.
Thanks very much - just to play safe I copied & pasted the mab files just to check all would be ok - which it was of course. Getting my head around WIn 10 is a bit of a challenge - especially as I was pushed! So thanks again - Suzanne