User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/125.5 (KHTML, like Gecko) Safari/125.9 Build Identifier: Clicking on New Tab File Menu option has no effect if no window is currently open. In Safari, this opens a new tab in a new window. I would expect this behavior or expect the New Tab Menu option be disabled of no window exists (less preferable). Reproducible: Always Steps to Reproduce: 1. Close all FireFox windows 2. Select File > New Tab Actual Results: Nothing happens Expected Results: New Tab should open containing new Tab (note this is not the same as a New Window opening, since the default page will not open inside a tab, but will inside a new window).

Pretty big usability issue. Asking for mac1.0 blocking status.

*** Bug 273989 has been marked as a duplicate of this bug. ***

Contrast with bug 147237 which would disable New Tab when no windows are open. IMO, opening a window is better.

*** Bug 274119 has been marked as a duplicate of this bug. ***

(In reply to comment #3) > Contrast with bug 147237 which would disable New Tab when no windows are open. > > IMO, opening a window is better. The premise of Bug #147237 sems to be in use in FF 1.5. Should this bug therefore be closed?

This appears to be fixed in latest Nightly on OSX.