738620 - new view not working: all tabs disappear after closing a single tab

Status: RESOLVED WORKSFORME

(Thunderbird :: Toolbars and Tabs, defect)

Description

[SyLoe]

Attachment: thunderbird-screen-missing-tabs.png

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0
Build ID: 20120312181643

Steps to reproduce:

win7
*  behavior before last update: in the previous versions I had the following config: whenever I closed the calender tab the mail tab also closed for having a bigger screen. whenever I opened the calender both tabs for calender and mail reopened. 
-----
update to TB 11
update to Lightning 1.3
3 tabs are open after the new start of TB: mail, update information from TB, calendar


Actual results:

3 tabs are open after the new start of TB: mail, update information from TB, calendar
after closing the tab with update information from TB all other tabs closed also - weired and reproducible via restart of TB
issues:
- the drop down for opening the tabs is now on the very left
- the symbols for calendar and tasks disappeared completely
- no chance to reactivate the tabs somehow. The tab line is empty! I know that there was a possibility to change the behavior in the previous 
TB version* (see above: what did you do?*) so that all tabs are visible in the tab line even if only a single tab is open.
- no chance to close a further tab after opening via drop down menue on the very left (only via file menue)




Expected results:

instead of this behavior I would  expect to have 2 remaining tabs still open for mail and calendar

My problem: I do not find the function in the menues to go back to the behavior that all tabs are always visible. How to fix it?

Comment 1

[SyLoe]

after restart of TB:
tab for mail is open
after starting lightning both tabs for calendar & mail disappear

Comment 2

[SyLoe]

found the mistake!
the add-on lightningbutton has to be deactivated for a proper working!  :)