User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a4pre) Gecko/20100406 Minefield/3.7a4pre ID:20100406003858 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a4pre) Gecko/20100406 Minefield/3.7a4pre ID:20100406003858 No tab drop indicator appears when enabled Tabs over the Navigation. Reproducible: Always 1. Start Minefield with new profile 2. View > Toolbars > "Tabs on Top" checked 3. Open several tabs 4. Dragging over a tab on tabtoolbar Actual Results: No tab drop indicator appears Expected Results: tab drop indicator appears

Confirmed, setting to NEW

This bug affects Linux and Windows but not OS X.

On my system (WinXP using the XP theme on my system, not browser), with tabs on top, the drop indicator is there, but most of it blends into my blue title bar. One must look very closely, but there is the tip of the arrow showing just below the title bar. It is only a few pixels in height--about the height of the space between the top of a tab and the top of the tab toolbar. Could it be that the drop indicator does not extend into the title bar? If that is the case, could the drop indicator be switched to pointing up from the nav toolbar side instead?

works for me on XP Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.3a6pre) Gecko/20100616 Minefield/3.7a6pre ( .NET CLR 3.5.30729)

(In reply to comment #4) > works for me on XP > > Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.3a6pre) Gecko/20100616 > Minefield/3.7a6pre ( .NET CLR 3.5.30729) It is probably working for you now that the Firefox button created its own toolbar and now the indicator has somewhere to be drawn.

(In reply to comment #6) > *** Bug 575573 has been marked as a duplicate of this bug. *** why dupe ?

FWIW, this works for me fine on Windows 7 with Aero Glass. Would be really good if we could figure out what's causing it. Only happens to Juan on Vista, f.o.

(In reply to comment #9) > Only happens to Juan on Vista, f.o. no, happen on Win 7 with basic theme see com #6, bug575573 fine with aero theme

(In reply to comment #9) > Would be really good if we could figure out what's causing it. As brought out by Ray in (comment #3), when tabs are at top the tab drop indicator is almost invisible (on Win XP, see attachment circled red). As he mentioned if tabs are on top, maybe the arrow could be shown from below the tab bar. Or, if the Windows Title bar can be displayed over (which I currently think is a problem for non-aero themed desktops (comment #10)), if the Tab Drop Indicator could be colored differently then the Windows Title bar, it would show up much better (ex: one pixel white border around the Tab drop arrow). This would also help the Tab Drop indicator show up better on dark colored Persona's (ex: dark persona right side attachment).

should reopen ? happen again after https://bugzilla.mozilla.org/show_bug.cgi?id=575870#c72

Given the fact that tabs on top is the default setting for Firefox 4.0, users will always run into this problem. Asking for blocking.

Marking as betaN - can someone please confirm that this is still a problem? Dao, do you see how the checkin referenced in comment 12 would have caused this to happen again?

This problem happens again due to changeset 5704ef94d87f of Bug 575870 . Because, the patch of Bug 574454 had been backed out by changeset 5704ef94d87f of Bug 575870. And this problem is not yet fixed on Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b5pre) Gecko/20100824 Minefield/4.0b5pre ID:20100824040950 .

seems to be fixed by https://bugzilla.mozilla.org/show_bug.cgi?id=575870#c99

Build: Mozilla/5.0 (Windows NT 5.1; rv:2.0b5pre) Gecko/20100825 Minefield/4.0b5pre ( .NET CLR 3.5.30729) Firefox/3.6.8 ID:20100825062325

(In reply to comment #17) > Created attachment 469390 [details] > Latest nightly Tab drop imdicator still 'missing' on latest XP release. > > Build: > Mozilla/5.0 (Windows NT 5.1; rv:2.0b5pre) Gecko/20100825 Minefield/4.0b5pre ( > .NET CLR 3.5.30729) Firefox/3.6.8 ID:20100825062325 There's some add-on or userChrome.css code messing this up for you.

(In reply to comment #18) > > There's some add-on or userChrome.css code messing this up for you. Yes if you remove the Title from the Windows "Title" bar, by letting the 'Minefield' button to show, you can see the Tab Drop indicator on the large empty Windows "Title" bar. It even shows over the upper right Windows 'Minimize, Maximize, and Close' icons, if this can be done, there should be no problem of displaying it over the Title in the Title bar.

Dao, do we already have a bug for OS X where the tab drop indicator is cut-off?

I don't think so.

Verified fixed with Mozilla/5.0 (Windows NT 5.1; rv:2.0b5pre) Gecko/20100826 Minefield/4.0b5pre (In reply to comment #20) > Dao, do we already have a bug for OS X where the tab drop indicator is cut-off? Filed that as bug 591050.