606711 - Firefox freezes with 100% cpu load when selecting no page style for Add-ons Manager

Status: RESOLVED WORKSFORME

(Toolkit :: Add-ons Manager, defect)

Description

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b8pre) Gecko/20101023 Firefox/4.0b8pre

This seems to be a recent regression. Haven't seen this a while back when checking this particular steps. As what I can see with the latest nightly build and some extensions installed, switching the page style to no style for the add-ons manager completely freezes Firefox. Also the process takes up to 100% cpu load. In a fresh profile without any extensions installed the style is switched after a couple of seconds but as more as extensions you have installed, as longer it takes.

Steps:
1. Create a fresh profile and install a couple of extenions
2. Open the add-ons manager
3. Select "View | Page Style | No Style"

After step 3 Firefox will freeze and consume 100% cpu load for a long time. I killed the process after about minutes, so I can't tell if we ever switch the style.

Comment 1

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Regressed between the builds 10091303 and 10091403.

PASS: http://hg.mozilla.org/mozilla-central/rev/84ee6bc0484d
FAIL: http://hg.mozilla.org/mozilla-central/rev/5588c9796f0b

Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=84ee6bc0484d&tochange=5588c9796f0b

Not sure which check-in could have been caused this.

Comment 2

[Dave Townsend [:mossop]]

This no longer happens for me, can you confirm?

Comment 3

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Yeah, this has been fixed by another patch, but I can't exactly remember which one. Lets mark it as WFM.