Can't install Thunderbird Version 153
I believe I downloaded 153, but I don't where to find it.
The information regarding Version 153 and downloading it is confusing.
One page states, "Manual upgrade to 153 is now enabled via Help > About", but when I go to Help > About, all I see is the current version and the statement that it is up to date. The recommendation on one page regarding 153 is to switch from Release to ESR, although the contrary seems to be the case for Version 153.
Svi odgovori (1)
I believe I downloaded 153, but I don't where to find it.
In the Download folder? What did you download in the first place - The 153.0 ESR or the 153.0 Release version? And to which version do you want to update to? See https://support.mozilla.org/kb/thunderbird-esr https://support.mozilla.org/kb/thunderbird-release
One page states, "Manual upgrade to 153 is now enabled via Help > About"
Upgrading from which version? You'd need to provide more context. Also a link would help.
... but when I go to Help > About, all I see is the current version and the statement that it is up to date.
As per the information you provided you're on TB 140.13.0esr. That is indeed the latest version of the 140 ESR update channel. The ESR version will have a three cycle (at least 12 weeks) overlap between the time of a new release (153.0esr) and the end-of-life of the previous release (140.xesr). After that you'll be automatically upgraded to the 153.xesr series, and you'd remain on the ESR update channel.
The recommendation on one page regarding 153 is to switch from Release to ESR,
You're still on the ESR update channel. So that "recommendation" sounds silly to me. You need to decide what you want, and not follow some random, and out of context "recommendations".