[Bug]: Tab displays the content of another tab

[WebworkrNet]

Steps to reproduce

Multiple tabs are open.

Expected behaviour

In each tab the content of the called page is displayed.

Actual behaviour

After a while, one or more tabs display the content of a foreign tab. At the same time, the tabs with foreign content freeze.

Device name

Samsung Galaxy XCover 4s

Android version

Android 10

Firefox release type

Firefox

Firefox version

91.1.0 (Build #2015826187) AC: 91.0.12, 1d401758fb GV: 91.0-20210804193234 AS: 79.0.0

Device logs

No response

Additional information

So far, I have observed this phenomenon only in private mode.

┆Issue is synchronized with this Jira Task

[WebworkrNet]

The error only occurs from time to time.

[WebworkrNet]

In the meantime, the error has also occurred in standard mode.

[WebworkrNet]

In rare cases, the tab does not freeze. After a while, the correct content is displayed.

[mariansima]

Sometimes this issue can be reproduced (rarely) by navigating between multiple open tabs using the swipe gesture on the toolbar. (Firefox Nightly 94.0.a1 2021-09-27)

[ohhai]

I have same, from time to time. When switching from tab A to tab B, url bar on tab switches properly (starts to show url B) but content of the page stays with tab A. It could be navigated, links pressed, etc, but tab B content becomes just inaccessible. Might be related: https://github.com/mozilla-mobile/fenix/issues/20207

[Cheap-Skate]

I have this issue too. As above, it most often happens when swiping between tabs. Sometimes the destination tab locks up. sometimes it locks up AND shows the wrong tab's content. I will try to find some STR

[ohhai]

Problem still present: version 95.2.0 (Build #2015851755) AC: 95.0.14, 4f3b0461e7 GV: 95.0.1-20211215221728 AS: 86.0.1

[gonhidi]

When I have had this happen to me, input on fields of (some, all?) pages that are not frozen stops working: the keyboard does not always show up when selecting a field, and when it does, typing on it does nothing.

This is on an up to date Pixel 3a phone. It is some days/weeks since this issue last triggered.

[DavidJCobb]

This happens to me rarely, and usually when I'm opening and closing several tabs during a browsing session.

[git-bruh]

Any updates on this? It's super annoying to have to re open firefox every time this bug happens

[WebworkrNet]

Error also occurs under the following system environment:

Device name Samsung Galaxy XCover 4s

Android version Android 11

Firefox release type Fennec

Firefox version 104.1.0 (Build #1041020), 99759dd72+ AC: 104.0.8, 3dc0ff00e7 GV: 104.0-20220824221210 AS: 93.7.2

[mduchev]

This is happening very frequently if I decide to change the tabs by swiping. It can occur only with 2 tabs opened. Can't say for sure that it happens if I manually switch between the tabs from the tab list/grid view. But swiping between tabs breaks the tab content very often. Also, the broken tab freezes and cannot be refreshed. Only stopping & starting Firefox again fixes the issue.

Here's a demo of 2 totally different sites:

Device name Pixel 4 XL

Android version Android 13 with latest October patch

Firefox version 105.2.0 (Build #2015907747), 01fbfd637+ AC: 105.0.8, 658c2d239f GV: 105.0.2-20221003135607 AS: 94.1.0

[boek]

Moved to bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1812870

Change performed by the Move to Bugzilla add-on.