aboutPerformance.js, TypeError: row.nextSibling is null; can't access its "firstChild" property

RESOLVED FIXED in Firefox 65

Status

()

defect
RESOLVED FIXED
5 months ago
5 months ago

People

(Reporter: florian, Assigned: florian)

Tracking

unspecified
mozilla65
Points:
---

Firefox Tracking Flags

(firefox65 fixed)

Details

Attachments

(1 attachment)

(Assignee)

Description

5 months ago
JavaScript error: chrome://global/content/aboutPerformance.js, line 1114: TypeError: row.nextSibling is null; can't access its "firstChild" property

This happens when attempting to hide a subtree at the bottom of the list. So either when collapsing the "Recently closed tabs" section (which is always at the bottom), or when closing a tab that's the last row in the table.

This is just noise in the console, can be fixed with a simple null check.

Updated

5 months ago
Attachment #9025001 - Flags: review+

Comment 2

5 months ago
Pushed by florian@queze.net:
https://hg.mozilla.org/integration/mozilla-inbound/rev/d933706067df
aboutPerformance.js, add a null check before accessing row.nextSibling when removing a subtree, r=Gijs.

Comment 3

5 months ago
bugherder
https://hg.mozilla.org/mozilla-central/rev/d933706067df
Status: NEW → RESOLVED
Last Resolved: 5 months ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla65
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