581827 - Session restore no longer works, but results in a blank page

Status: RESOLVED WORKSFORME

(Firefox :: Session Restore, defect)

Description

[Remko de Keijzer]

User-Agent:       Mozilla/5.0 (Windows; Windows NT 6.0; rv:2.0b3pre) Gecko/20100721 Minefield/4.0b2pre Firefox/4.0b2pre
Build Identifier: Mozilla/5.0 (Windows; Windows NT 6.0; rv:2.0b3pre) Gecko/20100722 Minefield/4.0b2pre Firefox/4.0b2pre

Starting Minefield nightly released on 22-07-2010, session restore no longer works. Minefield starts with a blank page instead of the latest session.
Sessionstore.js no longer gets updated.

Reproducible: Always

Steps to Reproduce:
1.Update firefox to at least the 4.0 nightly created on 22-07-2010
2.Start Minefield
3.
Actual Results:  
A normal firefox session with only about:blank opened

Expected Results:  
My previous session with several tabs and 2 windows.

Latest version working normal: http://hg.mozilla.org/mozilla-central/rev/1ac07fe5f6c9
Mozilla/5.0 (Windows; Windows NT 6.0; rv:2.0b3pre) Gecko/20100721 Minefield/4.0b2pre Firefox/4.0b2pre

First version not working: http://hg.mozilla.org/mozilla-central/rev/0f5fc40c6a0f
Mozilla/5.0 (Windows; Windows NT 6.0; rv:2.0b3pre) Gecko/20100722 Minefield/4.0b2pre Firefox/4.0b2pre

Comment 1

[Remko de Keijzer]

Switching back to the latest working version restores the latest saved session.

Comment 2

[Maini Marco]

Is this problem still here with latest nightly version?
What page have you set as home page?

Comment 3

[Remko de Keijzer]

I've tested it with the latest Dutch nightly (http://hg.mozilla.org/mozilla-central/rev/30239e4cebd8
Mozilla/5.0 (Windows; Windows NT 6.0; rv:2.0b3pre) Gecko/20100724 Minefield/4.0b2pre Firefox/4.0b2pre) and the problem still exists.
I've tested it with about:blank as my homepage and http://www.upc.nl as my homepage, both resulted in a blank tab.
So even the default homepage gets ignored.

Comment 4

[Paul O'Shannessy [:zpao] (not bugmail, email directly)]

Does this only happen the first time opening the nightly/beta after running 3.6? If you have a session in the nightly & quit, then start the nightly again, is the problem still there?

Could be related to / dupe of bug 581593.

Comment 5

[Remko de Keijzer]

I've stopped using 3.6 long before this problem occured. The problem occured during an update of a nightly Firefox 4.0.

Comment 6

[Remko de Keijzer]

It doesn't matter how many times I restart Firefox I always get the same "blank" screen. But sessionstore.js doesn't get updated when exiting firefox.

Comment 7

[Maini Marco]

Please try using Firefox in safe mode (http://support.mozilla.com/en-US/kb/safe+mode).
I have tried to exit from Firefox with "Save & quit" option, and tabs are restored correctly in my pc.

Comment 8

[Paul O'Shannessy [:zpao] (not bugmail, email directly)]

(In reply to comment #6)
> It doesn't matter how many times I restart Firefox I always get the same
> "blank" screen. But sessionstore.js doesn't get updated when exiting firefox.

Do you see any errors in your error console? (you will need to set javascript.options.showInConsole to true & maybe restart). You would typically see the error shortly after opening a new tab, since that's when session restore would try to write the file.

(In reply to comment #5)
> I've stopped using 3.6 long before this problem occured. The problem occured
> during an update of a nightly Firefox 4.0.

Are you saying that it stopped working between a specific nightly, but worked before then? If so, can you try to reproduce with versions before & after that problematic version.

And as mentioned above, SAfe Mode is a good place to start to ensure it's not a problem caused by an extension.

Comment 9

[Remko de Keijzer]

Somehow the changes between http://hg.mozilla.org/mozilla-central/rev/1ac07fe5f6c9
Mozilla/5.0 (Windows; Windows NT 6.0; rv:2.0b3pre) Gecko/20100721
Minefield/4.0b3pre
and
http://hg.mozilla.org/mozilla-central/rev/0f5fc40c6a0f
Mozilla/5.0 (Windows; Windows NT 6.0; rv:2.0b3pre) Gecko/20100722
Minefield/4.0b3pre

have broken Tab Mix plus, because disabling Tab Mix Plus solved my problem

Comment 10

[Remko de Keijzer]

Problem has been fixed in the latest dev build of Tab Mix Plus.