626269 - Tabs not seen after going to and back from Private browsing mode, plus not in line with Panorama informations on groups

Status: RESOLVED DUPLICATE of bug 594644

(Firefox Graveyard :: Panorama, defect)

Description

[Leonid Barchan]

User-Agent:       Mozilla/5.0 (Windows NT 5.1; rv:2.0b9) Gecko/20100101 Firefox/4.0b9
Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0b9) Gecko/20100101 Firefox/4.0b9

After entering the Private Browsing mode and leaving it back to normal mode the last active tab only is displayed from the last active tabs group. If I close it, the other group is displayed. If I go back to Panorama and back, everything is restored.

Reproducible: Always

Steps to Reproduce:
1. 2 tab groups, A and B, visible in Panorama mode. Three tabs in group A: A1, A2 and A3. One tab in group B: B1. Group A is visible, and tab A3 is active.
2. Switch to Private Browsing mode. A new empty tab is observed (as expected).
3. Switch to Normal Browsing mode.
Actual Results:  
Only tab A3 is visible and active, no more tabs seen in the window at all.

Expected Results:  
Seeing tabs A1, A2 and A3, with tab A3 being active.

To resolve the problem there are 2 ways:
 - (destructive) If I close tab A3, the browser switches to displaying tab B1. Tabs A1 and A2 are still not forgotten, I can switch to them using Panorama mode.
 - (non-destructive) If I switch to Panorama mode, I can see both groups as they were, selecting tab A3 brings everything back to normal initial state (as in Step 1 of the "How to reproduce" sequence).

Comment 1

[Luke Iliffe (Harlequin99)]

Unfortunately this was a bug that was not fixed in time for beta 9, but will be in the next one.