547221 - In an open message, the delete button is randomly grayed out.

Status: RESOLVED DUPLICATE of bug 254386

(Thunderbird :: Mail Window Front End, defect)

Description

[donna]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7 (.NET CLR 3.5.30729)
Build Identifier: 3.0.1

I have been unable to identify a repeatable set of conditions under which this happens yet, hence random. It is very apt to occur when I first open Thunderbird, but can recur at any time.  It is not specific to the email message; a message that had a grayed-out delete button may subsequently have a working delete button if I reopen it.

Reproducible: Sometimes

Steps to Reproduce:
1. Opened same emails under multiple conditions (in results of search, in folder, in different sorts, moved to different folders.  No consistency)
2. 
3.

Comment 1

[Ludovic Hirlimann [:Usul]]

Have you tried safe mode? (see https://support.mozillamessaging.com/en-US/kb/Safe+Mode for more information) ?

Comment 2

[donna]

Not yet, but since I have made few setting changes and installed no add-ons, the description of Safe Mode did not make it seem like a particularly useful tool in my circumstances.  Will report back if Safe mode offers any enlightenment.

Comment 3

[donna]

Additional information: I was using the Default theme, because I dislike the new folder arrangement, and had added a delete button to the message toolbar, because the delete button in the header was missing so often I assumed, at first, that the lack was a feature. 

Now running in safe mode.  Delete button in header randomly disappears.  Have still been unable to determine a pattern.  Will continue running in safe mode and attempt to find a pattern.

Comment 4

[donna]

When the delete button in the header is missing, using "F" to scroll to the next message is also disabled.

Comment 5

[Ludovic Hirlimann [:Usul]]

(In reply to comment #3)

> Now running in safe mode.  Delete button in header randomly disappears.  Have
> still been unable to determine a pattern.  Will continue running in safe mode
> and attempt to find a pattern.

Thanks. The pattern could be the messages themselves .....