On some Computer My Thunderbird Profile is still the same as from the first version of Thunderbird from 2006. It contains a lot of strange files and is much larger than a new profile. Please develop a full migration of the Thunderbird profile into a new profile. Beside my I'm also Family admin of several PC with Thunderbird. Most of their Profile has the same age like my profile. It would be nice If I could migrate these profile as easy as possible. I do not wish to set up new mail clients and may forget settings or add-ons. I suggest following behavior. User do start a Profile migration Thunderbird requests some basics [x] Automatic cleanup - nothing get lost you currently use. [ ] Custom cleanup - remove some data you currently use but you do not need anymore. -> Add some requests If custom cleanup is active: list of add-ons, experimental settings, remove password list, etc. Create a new Profile Install all currently active add-ons Migrate all settings of Thunderbird Migrate all settings Thunderbird in the current Version is able to use Migrate accounts and also their mail filter rules Settings of migrated add-ons. Cleanup cached Mails Perform a Thunderbird start Migrate cached Mails -> May check ahead of the Migration if enough disk space is available Migrate requested Passwords. -> May ask for removing Password from the old profile If the whole migration was successful If every thing is successful and the next Thunderbird start was also successfully too, tar.xz the old Profile.
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