1170033 - Ghost tabs appear when opening new tab immediately after tab or window close

Status: RESOLVED WORKSFORME

(Firefox :: Tabbed Browser, defect)

Description

[(No longer employed by Mozilla) Aaron Klotz]

Attachment: Sample image (mouse cursor was atop ghost tab to show outline)

This is hard to reproduce precisely, however I can do it 1 - 2 times per week. It seems to happen when I open a new tab via Ctrl+T rapidly after closing another tab or window. I think (but am not 100% sure) that the Ctrl+T must occur while the closing tab/window is still animating.

Once these ghost tabs appear they cannot be manipulated; in fact it becomes difficult if not impossible to do much with any of the other tabs either. I've checked the browser console when this happens and I usually encounter messages of this sort:

14:21:50.975 TypeError: browser is undefined TabStateCache.jsm:57:4

14:18:00.944 TypeError: getBrowserForTab(...) is undefined
Stack trace:
getTabContentWindow@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/tabs/utils.js:245:10
getTabForContentWindow/<@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/tabs/utils.js:259:32
getTabForContentWindow@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/tabs/utils.js:259:10
@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/content/worker.js:127:13
dispatch@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/method/core.js:119:12
initialize@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/content/worker.js:61:7
constructor@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/core/heritage.js:146:23
CheckGalleries@resource://gre/modules/commonjs/toolkit/loader.js -> resource://b9db16a4-6edc-47ec-a1f4-b86292ed211d/downloadhelper/lib/gallery.js:27:15
StartStop/pageModAuto<.onAttach@resource://gre/modules/commonjs/toolkit/loader.js -> resource://b9db16a4-6edc-47ec-a1f4-b86292ed211d/downloadhelper/lib/gallery.js:177:6
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:112:9
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/page-mod.js:178:7
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:112:9
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:123:45
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/content/worker.js:172:3
dispatch@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/method/core.js:119:12
@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/page-mod.js:189:3
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:112:9
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:112:9
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:123:45
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
frameMessageReceived@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/remote/parent.js:152:32
1 core.js:106

14:15:43.461 TypeError: target.QueryInterface is not a function
Stack trace:
getFrameElement@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/window/utils.js:443:4
getFrame@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/input/frame.js:32:39
lift/</<@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/utils.js:163:28
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:112:9
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
receive@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/utils.js:115:5
InputPort.prototype.observe@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/input/system.js:100:5
ObserverParent.notify@resource://gre/modules/RemoteAddonsParent.jsm:347:9
ObserverParent.receiveMessage@resource://gre/modules/RemoteAddonsParent.jsm:337:9
1 core.js:106

Comment 1

[(No longer employed by Mozilla) Aaron Klotz]

I don't see this anymore.