Works perfectly.No issues.

Works for me in fedora 25. No issues.

Alternative toolbox is available. It works fine.

BZ#1434240 plugin doesn't appear under list of available plugins

It works fine. No issues.

BZ#1466136 Thunderbird 52.2.0 has issues with GMail, fixed in 52.2.1
BZ#1464622 thunderbird-52.2.1 is available

LGTM. No issues.

Test Case firefox addons
Test Case firefox browse