310726 - Regression: Cannot close tabs

Status: RESOLVED DUPLICATE of bug 308788

(Firefox :: Tabbed Browser, defect)

Description

[jpl24]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20050916 Firefox/1.6a1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20050916 Firefox/1.6a1

After Deer Park 1.6 updated today, tabs can no longer be closed. When clicking
on the x box the following is shown in the javascript console: 

Error: uncaught exception: [Exception... "Failure arg 0
[nsIDocShell.contentViewer]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)" 
location: "JS frame :: chrome://global/content/bindings/tabbrowser.xml ::
removeTab :: line 1197"  data: no]

This is close and may be related to bug 296505, but it can be reproduced without
browsing to any web pages and tabs do NOT close when right-clicking on the tab
and selecting close tab. Line number in tabbrowser.xml is different too. Tested
in safe mode and the problem still persisted. I'm pretty sure this regressed
between the last two nightly builds.


Reproducible: Always

Steps to Reproduce:
1. Open firefox
2. Press cntl-T to open a new tab.
3. Try to close the tab using x or close tab from right click menu.

Actual Results:  
Tab remains open, error on javascript console.

Expected Results:  
Tab should have closed.

Comment 1

[Dave Townsend [:mossop]]

If you're testing trunk builds you should test the latest before filing bug reports.


*** This bug has been marked as a duplicate of 308788 ***