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Performance radically worse since upgrade to 128.5 - want to downgrade

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  • Last reply by Wayne Mery

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Performance was already poor in v115, but has gotten much worse since upgrading to 128.5. This is a documented bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1906482 Are there any known workarounds? If not, how can I downgrade with losing all of my settings? I have 7 e-mail accounts and a few calendar accounts set up. This took a lot of time, since several of them require app-specific passwords. Thunderbird complains if I try to open a profile from a newer version in an older version of the software. How can I do this safely?

Performance was already poor in v115, but has gotten much worse since upgrading to 128.5. This is a documented bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1906482 Are there any known workarounds? If not, how can I downgrade with losing all of my settings? I have 7 e-mail accounts and a few calendar accounts set up. This took a lot of time, since several of them require app-specific passwords. Thunderbird complains if I try to open a profile from a newer version in an older version of the software. How can I do this safely?

Modified by Wayne Mery

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https://bugzilla.mozilla.org/show_bug.cgi?id=1906482 has not yet moved forward nor been resolved, but two major issues were recently resolved in ESR version 140.

If you are still having an issue and it matches to https://bugzilla.mozilla.org/show_bug.cgi?id=1906482 then I would encourage you to add new information to that bug report.