Rated 5 out of 5 stars

Yes, you are right - 1.4.6 already fixes the problem. :)
I was originally testing with 1.4.4, which seemed not to like spaces in the path name.
Thanks again for keeping MinimizeToTray alive.

This review is for a previous version of the add-on (1.4.6). 

Rated 5 out of 5 stars

Hi. I just wanted to add to my earlier comment about the extension not working for me when the profile folder has a space in the path name. There seems to be a problem with the installation script - the folder "mintray-reanimated@ysard" is not created in the Extensions folder. When I copy the folder "mintray-reanimated@ysard" by hand from a profile with no space in the path name, everything works fine.
It sure is great to have everything working again -no more restarting Thunderbird one hundred times a day.
Thank you, thank you, thank you.

This review is for a previous version of the add-on (1.4.6). 

Hi, thanks for the report, this problem is supposed to be fixed since version 1.4.6.

(https://github.com/ysard/mintrayr/issues/5).
Could you look at this issue, and try the version 1.4.6dev (https://github.com/ysard/mintrayr/releases/tag/1.4.6dev) which solves a random problem when installing the addon and which could actually be yours.

Rated 5 out of 5 stars

Many, many, many thanks for working on the MinimizeToTray addon for Thunderbird 60+. It works perfectly in Windows 10 if the Thunderbird profile is in the default position.
However, it does not work when there is a space in the path of the Thunderbird profile folder. I guess this is mainly relevant for those who use Thunderbird as a portable app.
Thanks.

This review is for a previous version of the add-on (1.4.6).