1564067 - Addressing UI changes dynamically causing unwanted user input

Status: RESOLVED DUPLICATE of bug 1493158

(Thunderbird :: Message Compose Window, defect)

Description

[Dotan Cohen]

Attachment: tb-1.png

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0

Steps to reproduce:

1. Click "Reply all" on an email with multiple recipients.
2. Change a recipient from CC to BCC, or BCC to CC.
3. Try to click the dropdown selector for To/CC/BCC.

Actual results:

When the mouse hovers over the dropdown selector for To/CC/BCC, the selection box changes to an "X" "remove recipient" button, and the recipient is removed from the list.
Furthermore, there is no UNDO action for the removal of a recipient.

To see the chain of events leading up to the pressing of the "remove recipient" button, see screenshots here:
https://imgur.com/a/zQzZ0Rc

Expected results:

The dropdown selector for To/CC/BCC should have unfolded and let the user select one option from the list.

Comment 1

[Dotan Cohen]

Attachment: This is what happens when the mouse cursor hovers over the selection box.

Comment 2

[Dotan Cohen]

Attachment: Shows surprise "remove recipient" button being pressed even though that is not the user's intent.

Comment 3

[Dotan Cohen]

It should be made clear that this bug was brought to my attention by a Thunderbird user who did not understand why here recipients were disappearing. She is a skilled computer user, who mouses so fast that even I did not see the "remove recipient" button when she first demonstrated the issue to me.

Comment 4

[Wayne Mery (:wsmwk)]

This will be fixed in version 68, out in a couple months.

Comment 5

[Thomas D. (:thomas8)]

Bug 1527547 is another nice improvement in this corner, but this is really a duplicate of bug 1493158.