Check the release notes. https://www.mozilla.org/en-US/thunderbird/52.3.0/system-requirements/

christ1 said

Check the release notes. https://www.mozilla.org/en-US/thunderbird/52.3.0/system-requirements/

I actually already had, but thought it possible that the release notes had yet to be updated. Based on this, I assume that I should wait to install High Sierra until there's a new release of Thunderbird.

The reality will be that Thunderbird will not have it listed as a supported version until after Firefox does. Firefox will do the shared rendering engine part and it would not appear they have as yet.

Currently they do not list it. https://www.mozilla.org/en-US/firefox/55.0.3/system-requirements/

Matt said

The reality will be that Thunderbird will not have it listed as a supported version until after Firefox does. Firefox will do the shared rendering engine part and it would not appear they have as yet. Currently they do not list it. https://www.mozilla.org/en-US/firefox/55.0.3/system-requirements/

OK, thanks.

High Sierra (OSX 10.13) is supported by FF 56, available now. The next minor release of TB, v. 52.4, may state explicitly that it supports 10.13, but right now it requires '10.9 or later', so I think it's quite likely you'll find it works in 10.13.

Thanks, but I think I'd better wait until it's certain, I live by my email. :)

It should be relatively good in version 60, coming out soon