401030 - Nightly Tester Tools' extension History > Restore Session fails - console error SessionStore: The session file is invalid: TypeError: this._initialState.windows[0] has no properties

Status: RESOLVED INVALID

(Firefox :: Session Restore, defect)

Description

[Liam K.]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a8) Gecko/2007091216 GranParadiso/3.0a8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a8) Gecko/2007091216 GranParadiso/3.0a8

I closed Firefox with three tabs, and then opened it again. Firefox showed three tabs that were titled "Loading...", but I waited a few minutes and they never loaded. When I went to History > Restore from last session, I got the error "Unable to read from file, this is unrecoverable."

Reproducible: Didn't try

Steps to Reproduce:
1. Open three tabs.
2. X out Firefox.
3. Open Firefox.
Actual Results:  
Firefox showed three tabs that said "Loading..."

Expected Results:  
Firefox should restore my tabs.

Extensions:

Adblock Filterset.G Updater 0.3.1.2
Adblock Plus 0.7.5.3
Adblock Plus: Element Hiding Helper 1.0.2
ChatZilla 0.9.78.1
Duplicate Tab 0.9.1
Fasterfox 2.0.0
Nightly Tester Tools 1.3b3
NoScript 1.1.7.2
PageStyle2Tab 0.7.4
ReloadEvery 2.0
StumbleUpon 3.06
TestGen4Web - Script It All 0.50.1.1
Update Scanner 2.0.14
Web Developer 1.1.4
WebMail Notifier 1.0.3
wikiHow Toolbar 1.1 [DISABLED]

Comment 1

[Liam K.]

I tried reproducing this, and the same thing happened. History > Restore tabs from last session works some of the time.

Comment 2

[Liam K.]

I found this in the error console:

SessionStore: The session file is invalid: TypeError: this._initialState.windows[0] has no properties

Comment 3

[Wayne Mery (:wsmwk)]

This is a function of nightly tester tools extension http://www.oxymoronical.com/web/firefox/nightly/features

The website states "This new feature allows you to start without restoring your session then pop up a list of the previous session and choose which tabs to restore. *Currently under development*"

Comment 4

[Dave Townsend [:mossop]]

Not a firefox bug - invalid