Rated 4 out of 5 stars

Very nice; would be even better if check mark appears only when you click the box (i.e., not when you click the message to open it).

Rated 5 out of 5 stars

This addon has inspired select functionality to be added to core Thunderbird in v70+. Pick column Select Messages from the columnpicker.
Also included is 'no unwanted selection', meaning unselect in the column will prevent selecting anything in that folder on junk or delete or other message move actions.

This user has a previous review of this add-on.

Rated 4 out of 5 stars

Circle should outline white colour. Dark mode makes circle like invisible.

Rated 5 out of 5 stars

please update to new thunderbird 68

This review is for a previous version of the add-on (1.3.0). 

Rated 5 out of 5 stars

Nice, practical

This review is for a previous version of the add-on (1.3.0). 

Rated 5 out of 5 stars

Also for not mobile users a great addon. Thanks for that!

This review is for a previous version of the add-on (1.2.2). 

Rated 5 out of 5 stars

Works perfect, and is great even in non-touch screens to select multiple e-mails.

This review is for a previous version of the add-on (1.2.2).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

Of course, multi selection function is good also.

This review is for a previous version of the add-on (1.2.1). 

Rated 4 out of 5 stars

This does exactly what I want. Except, when you take the action on the selected items, you're left with an email selected. So, say I select 4 emails to delete. That happens, and when finished, the next email is still selected. This seems incorrect to me and could lead to unintended actions being performed.

This review is for a previous version of the add-on (1.2.1). 

Rated 4 out of 5 stars

Sadly its not available for the latest versions of Thunderbird
This would be the ideal addon to migrate a user from a webmail client with checkbox select and bulk function application
I will grade it as a 4 for now!

This review is for a previous version of the add-on (1.2). 

I've updated it for version 52.

Rated 4 out of 5 stars

lacks release clamping LMB

This review is for a previous version of the add-on (1.2). 

Can you elaborate on what specifically is missing? Ideally, open an issue on GitHub. Thanks

Rated 4 out of 5 stars

Very useful. I would give it five stars if the developer could reduce (or let me know how to reduce) the size of the icon in the threadpane. Thanks in advance.

PS: Thank you for your reply. It seems that there was a misunderstanding; I was inquiring about reducing the size of the icons in the threadpane. I figured it out in the end: reduce 16px to 12px in style.css. That works fine, but it would be nice to have it as an "official" option. I also agree with the previous reviewer's points 1 and 2, which don't appear to have been addressed. Thanks again.

This review is for a previous version of the add-on (1.2). 

Thanks. Here's how you can use small icons: Open the list of add-ons by clicking Tools → Add-ons. Click Options in the row for Checkbox column. Clear the "Large Font" checkbox.