Closed Bug 1517485 Opened 4 years ago Closed 2 years ago

Crash in java.lang.IllegalArgumentException: at android.os.Parcel.readException(


(Firefox for Android Graveyard :: Custom Tabs, defect, P2)



(geckoview64 wontfix, geckoview65 affected, geckoview66 affected, firefox-esr68 affected, firefox64 wontfix, firefox65 fix-optional, firefox66 fix-optional, firefox67 affected)

Tracking Status
geckoview64 --- wontfix
geckoview65 --- affected
geckoview66 --- affected
firefox-esr68 --- affected
firefox64 --- wontfix
firefox65 --- fix-optional
firefox66 --- fix-optional
firefox67 --- affected


(Reporter: marcia, Unassigned)


(Keywords: crash, regression, regressionwindow-wanted)

Crash Data

This bug was filed from the Socorro interface and is
report bp-0a7b05a2-8cd7-4704-8a9b-45e160190103.

Seen while looking at crash stats for Fennec release: Seems to be rising a bit according to crash stats. According to the stack it looks to have something to do with custom tabs:

java.lang.IllegalArgumentException: removeChild: container=Task=82 is not a child of container=Stack=1 current parent={stackId=1001 tasks=[{taskId=82 appTokens=[AppWindowToken{52c7e83 token=Token{63fda01 ActivityRecord{98093e8 u0 org.mozilla.firefox/org.mozilla.gecko.customtabs.CustomTabsActivity t82}}}, AppWindowToken{c5e3d95 token=Token{2fe27b4 ActivityRecord{2438c87 u0 de.axelspringer.yana.zeropage/de.axelspringer.yana.activities.HomeActivity t82}}}, AppWindowToken{a31b160 token=Token{e45c163 ActivityRecord{10dd392 u0 org.mozilla.firefox/.App t82}}}] mdr=false}]}
Eitan, can you please take a look at this? It's rising in frequency on release.
Flags: needinfo?(eitan)
Handing this over to the GeckoView team.
Flags: needinfo?(eitan) → needinfo?(geckoview)
Interesting. This is not a new crash signature, but the volume doubled around October 5 and then started climbing further starting in mid-December, perhaps after Fennec 64 was released (December 11).
Flags: needinfo?(geckoview)
Whiteboard: [geckoview]

James says this is a Fennec bug. There is no GeckoView code involved. Fennec is receiving an Intent and trying to launch a custom tab.

Priority: -- → P1
Whiteboard: [geckoview]

Making sure this is on Susheel's radar.

Flags: needinfo?(sdaswani)

Liz sorry how do we get this on our P1 list? I am still not clear on that, sorry.

Flags: needinfo?(sdaswani) → needinfo?(lhenry)

It's on there -

Flags: needinfo?(lhenry)
Assignee: nobody → vlad.baicu

Not going to make 65.0 at this point, but I'd still consider it for a dot release assuming the frequency on release 65 ends up being similar to what it was for 64.

In early 65 data this crash is showing up, but we won't know the full scope until we go out wider. I do see it on 67 but in very small volume.

After investigating further, I've shared my findings here:

Assignee: vlad.baicu → nobody

Stalled crash with almost 5000 crashes on 68 release. Some of the top crashing phones are Lava,

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: 2 years ago
Resolution: --- → INCOMPLETE

Since the bug is closed, the stalled keyword is now meaningless.
For more information, please visit auto_nag documentation.

Keywords: stalled
Product: Firefox for Android → Firefox for Android Graveyard
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