848518 - session restore is launched even if I closed FF with a blank tab.

Status: UNCONFIRMED

(Firefox :: Session Restore, defect)

Description

[u464882]

User Agent: Mozilla/5.0 (Windows NT 5.1; rv:20.0) Gecko/20100101 Firefox/20.0
Build ID: 20130305164032

Steps to reproduce:

*My Startup setting is "Show my windows and tabs from last time".

!!!Important!!! I did some tests. I found these two settings conflict with session restore. if I set these to default, it doesn't happen.
-browser.newtab.url to "about:blank".
-browser.newtabpage.enabled to false.

1.I updated FF20.0b1 to FF20.0b2.
2.I opened FF. and I open and close some tabs as usual.
3.I closed FF with a blank tab and opened FF.



Actual results:

Then, frequently session restore is displayed with blank tab and previous closed tabs items.
*Latest FF20.0b3 still have this problem. 
*FF20.0b1 and lower vesions don't have this problem.
*I uninstalled all addons, so it is not related with addons.


Expected results:

Session restore is not displayed and a blank tab is displayed.

Comment 1

[mjh563]

This sounds like bug 495123 but with slightly different results (session-restore window being shown, rather than previously closed windows getting re-opened).

Comment 2

[u464882]

One more condition to reproduce this bug:
-Close FF with close button.(Don't close FF with "File -> Exit" menu)

Comment 3

[Wayne Mery (:wsmwk)]

dupe of bug 845681?

Comment 4

[Pavlos Touboulidis]

Still happening on nightly 24.

Don't know if these changed prefs are related:

browser.newtab.url;about:blank
browser.startup.homepage;about:blank

Comment 5

[Wayne Mery (:wsmwk)]

 circcc do you still see this problem?

Comment 6

[u464882]

(In reply to Wayne Mery (:wsmwk) from comment #5)
>  circcc do you still see this problem?

yes.