644304 - Tools-->Options-->Open new window in new tab doesn't work in 4.0, did work in 3.5

Status: UNCONFIRMED

(Firefox :: Tabbed Browser, defect)

Description

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User-Agent:       Mozilla/5.0 (Windows NT 6.0; rv:2.0) Gecko/20100101 Firefox/4.0
Build Identifier: Mozilla/5.0 (Windows NT 6.0; rv:2.0) Gecko/20100101 Firefox/4.0

I have "Open new window in new tab" checked in Options as the default. Last night, after installing FF 4.0, it would instead default to opening new windows unless I specifically selected "open in new tab" in the context window. 

Today, I deselected "Open new window in new tab" and after a few minutes went back and reselected it. Now, FF4.0 is opening the newly selected URL as a tab  but not as a new tab. It's opening it in the tab with current focus.

I hope this info will be helpful. The way it worked in FF 3.5 was perfect.

Reproducible: Always

Steps to Reproduce:
1. (Problem seems to be variable; see above Details).
2.
3.


Expected Results:  
"Open new window in new tab" selected as default results in new-URL "Open" selections appearing in a new tab, with the focus shifted to there, every time. The way it was in FF 3.5, IOW.

Comment 1

[Henrik Skupin [:whimboo][⌚️UTC+2]]

Please run Firefox in Safe mode and check if you can reproduce it. Could be an extension related issue.

http://support.mozilla.com/en-US/kb/Safe%20Mode