939872 - Sessionstore lost all of my data due to backup during each upgrade

Status: RESOLVED DUPLICATE of bug 883609

(Firefox :: Session Restore, defect)

Description

[(no longer active)]

Firefox crashed for me today <https://crash-stats.mozilla.com/report/index/7103f437-ef81-4b88-ab6f-028462131118> and when I restarted, it had lost all of my tabs and windows, except for two pinned tabs.

Comment 1

[(no longer active)]

FWIW I really wished there was some way for me to provide some information in order to diagnose these kinds of bugs.

Comment 2

[David Teller [:Yoric] - still alive but not very active]

A few things:
- this looks like Nightly, so there should be an upgrade backup called sessionstore.bak-buildid;
- do you know at which stage this crashed?

Comment 3

[(no longer active)]

(In reply to comment #2)
> A few things:
> - this looks like Nightly, so there should be an upgrade backup called
> sessionstore.bak-buildid;

I only have one file with that name pattern (sessionstore.bak-2013111809413) which has been created after the sessionstore data went away, and doesn't contain the old data.

> - do you know at which stage this crashed?

At which stage?  I left Firefox unattended and went to lunch, and saw the crash reporter dialog when I came back.

Comment 4

[(no longer active)]

Note that I believe my Nightly was a few days old before I hit this.

Comment 5

[(no longer active)]

(According to the update history, it was the Nov-11 nightly.)

Comment 6

[(no longer active)]

(In reply to comment #5)
> (According to the update history, it was the Nov-11 nightly.)

Which means that when I restarted the app after the crash, I first installed an update to the Nov-18 nightly, in case that matters.

Comment 7

[David Teller [:Yoric] - still alive but not very active]

> At which stage?  I left Firefox unattended and went to lunch, and saw the crash reporter dialog when I came back.

I just wanted to know if this was during startup. Obviously not.

(In reply to :Ehsan Akhgari (needinfo? me!) from comment #6)
> Which means that when I restarted the app after the crash, I first installed
> an update to the Nov-18 nightly, in case that matters.

That's what erased your backup, I'm afraid.

Comment 8

[(no longer active)]

(In reply to comment #7)
> (In reply to :Ehsan Akhgari (needinfo? me!) from comment #6)
> > Which means that when I restarted the app after the crash, I first installed
> > an update to the Nov-18 nightly, in case that matters.
> 
> That's what erased your backup, I'm afraid.

That's not the intended behavior, is it?

Comment 9

[David Teller [:Yoric] - still alive but not very active]

This is the intended behavior at the moment: backup during each upgrade.
We could keep two backups instead of one, though.

Comment 10

[(no longer active)]

(In reply to comment #9)
> This is the intended behavior at the moment: backup during each upgrade.
> We could keep two backups instead of one, though.

That would be very nice!

Comment 11

[Virtual_ManPL [:Virtual] 🇵🇱 - (please needinfo? me - so I will see your comment/message/reply/question/etc.)]

This bug was probably fixed in #883609.
If someone still is able to reproduce the issue, please reopen this bug.