Closed Bug 1382125 Opened 7 years ago Closed 4 years ago

[Tablet] Closed tab remains visible in tab bar


(Firefox for Android Graveyard :: Theme and Visual Design, defect, P5)



(fennec?, firefox60 affected, firefox63 affected)

Tracking Status
fennec ? ---
firefox60 --- affected
firefox63 --- affected


(Reporter: knipesteven, Unassigned)



(2 files)

User Agent: Mozilla/5.0 (Android 7.0; Tablet; rv:55.0) Gecko/55.0 Firefox/55.0
Build ID: 20170710193228

Steps to reproduce:

Closed a tab (inconsistent but it's happened twice now)

Actual results:

The tab closed but the tab graphic remained

Expected results:

Tab should visually disappear from the bar
Forgot to mention: I am using Firefox Beta 55.0b8 on Android 7.0, shield tablet k1.
Summary: Tab remains visually after deletion → [Tablet] Closed tab remains visible in tab bar
Update: I have figured out a way to reliably trigger the bug.

1) open at least two tabs
2) press and hold the x button on a non-active tab for ~1 second
3) release

This button only appears on the tablet interface. On the phone interface only the active tab has an x button.
I am also getting this error. I am running Firefox 55.0.2 20170815231002 on Android 4.2.2. I can reproduce the issue by following ssk97's instructions above.
Thanks for report!
Tried to reproduce the issue with Samsung Galaxy Tab S3 (Android 7.0) and Huawei MediaPad M2 (Android 5.1.1)  but the closed tab was not displayed following the steps from comment 3. Is this still reproducing? Could you please install the latest Nightly (from here - and try again? Thanks
Flags: needinfo?(ssk97)
I just tried it on 60.0a1 (2018-02-19) and it still happens despite the different looking UI. It also seems to work on the active tab. Note that this is done on the main browser screen, the tablet interface has the tabs on the top of that screen.

If another tab goes on top of the previous one then the closed tab can be hidden behind that tab. I have not done testing to determine how the ordering of the tabs is determined. Interestingly the closed tab will change shade while pressed (like a normal tab), but it does nothing else (can't be dragged around or switched to)

On a side note I have no idea what I was saying about the phone interface on that previous comment, the phone interface doesn't have the tabs at all.
Flags: needinfo?(ssk97)
I was able to reproduce it finally, with the STR described, on a Huawei MediaPad M2 (Android 5.1.1). Can't 100% reproduce it though, so I'm unable to find a regression window.
Build: Nightly 60.0a1 (2018-02-26).
tracking-fennec: --- → ?
Ever confirmed: true
OS: Unspecified → Android
Hardware: Unspecified → All
Version: 55 Branch → 60 Branch
I just tried using mozregression (first time using it) and managed to get it down to here:

It seems like the bug appeared when tab reordering was introduced.
Component: Awesomescreen → Theme and Visual Design
Version: 60 Branch → Trunk
I just tested it again and it doesn't seem to be happening anymore, at least not with the STR that I posted above. I think the UI update with Firefox Quantum fixed the bug.
I was able to reproduce it with the Nightly 63 (2018-07-05) build, on 2 tablets:
Huawei MediaPad M2 (Android 5.1.1)
Samsung Galaxy Tab 3 (Android 7.0)
Re-triaging per

Needinfo :susheel if you think this bug should be re-triaged.
Priority: -- → P5
We have completed our launch of our new Firefox on Android. The development of the new versions use GitHub for issue tracking. If the bug report still reproduces in a current version of [Firefox on Android nightly]( an issue can be reported at the [Fenix GitHub project]( If you want to discuss your report please use [Mozilla's chat]( server and join the [#fenix]( channel.
Closed: 4 years ago
Resolution: --- → INCOMPLETE
Product: Firefox for Android → Firefox for Android Graveyard
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