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how can I export addressbook in beta version 75 b2 or at least go back to status befor upgrade?

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a customer updated from 68 to 74 (beta), it automaticly updated also addressbook database/database format. now customer cannot print

i installed again version 68, but I hat to create e completly "new profile" now I can print but: I cannot access addressbook anymore

so: i uninstall stable version 68 and install version 75 (beta2) again I cannot print but i can access addressbook BUT: i cannot export addressbook

and I cannot undone or downgrade addressbook file abook.mab.

how can i migrate/downsize/downgrade abook.mab oder abook.sqlite?

a customer updated from 68 to 74 (beta), it automaticly updated also addressbook database/database format. now customer cannot print i installed again version 68, but I hat to create e completly "new profile" now I can print but: I cannot access addressbook anymore so: i uninstall stable version 68 and install version 75 (beta2) again I cannot print but i can access addressbook BUT: i cannot export addressbook and I cannot undone or downgrade addressbook file abook.mab. how can i migrate/downsize/downgrade abook.mab oder abook.sqlite?

Chosen solution

i found a solution:

uninstall beta version (74, or 75b0, 75b2) reboot install stable version (68) open thunderbird create new imap profile close thunderbird

if you have old profile: make sure thunderbird.exe ist closed. make a copy of abook.mab.bak and copy it from old profile to new profile rename abook.mab.bak to abook.mab open thunderbird

now you are able to print and also have access to addressbook again.

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Chosen Solution

i found a solution:

uninstall beta version (74, or 75b0, 75b2) reboot install stable version (68) open thunderbird create new imap profile close thunderbird

if you have old profile: make sure thunderbird.exe ist closed. make a copy of abook.mab.bak and copy it from old profile to new profile rename abook.mab.bak to abook.mab open thunderbird

now you are able to print and also have access to addressbook again.