Layout suggestion for Thunderbird (Mac)

[JoeNS]

Hi team,

may I suggest that there should be a thicker line between Message List Header and Message Pane, so user can 

A five pixel invisible one is a hard to catch sometimes, and on some occasions it isn't there (a bug maybe?) and Thunderbird restart helps.

I have 147.0 (aarch64) installed on 26.2

Regards,

Jovan

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[wsm]

I'm on the same version and don't see a problem.  

1. If it's the same thickness as other borders then we don't plan to change anything.

2. If it's thinner than other borders (or missing) then it's a bug, or caused by an addon.

@JoeNS, which case are you, #1 or #2?