556332 - AVG Toolbar causes Firefox 3.6.2 to leak memory (and maybe use large amounts of CPU)

Status: RESOLVED FIXED

(Firefox :: General, defect)

Description

[[:Cww]]

From a report on the support forum: https://support.mozilla.com/en-US/forum/1/633202 and http://support.mozilla.com/nl/forum/1/632193

Firefox 3.6.2 with AVG on windows seems to spike CPU usage and cause Firefox to use increasingly more RAM.  It maybe related to form filling.  From the above reports, a number of people say that after disabling AVG, it gets much better.

Comment 1

[Carsten Book [:Tomcat]]

will do a check for leaks here

Comment 2

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Could that be the cause that a lot of users are complaining about high cpu load when opening flash based web pages? We got a couple of reports already.

Comment 3

[Henrik Skupin [:whimboo][⌚️UTC+1]]

(In reply to comment #2)
> Could that be the cause that a lot of users are complaining about high cpu load
> when opening flash based web pages? We got a couple of reports already.

If that is the case I got one report from a user on IRC that Fx3.6 is working fine and no high cpu load happens when opening flash content containing web page. It starts with Fx3.6.2 but only in normal mode. In Safe Mode with AVG disabled it's fine too. So we would have a change for 3.6.2 which regressed it on mozilla1.9.2?

Just in case adding regression keywords.

Comment 4

[[:Cww]]

Dozens of reports on SUMO this week.  AVG is present in about 90% of reports.  Many confirmations that disabling AVG toolbar/extensions helps in those cases.  Also reports of other extensions and or Java Console being the culprit but the 90% case is definitely AVG.

Comment 5

[Mike Beltzner [:beltzner, not reading bugmail]]

Do we know what version of AVG this is happening with?

Comment 6

[[:Cww]]

Horray for about:support:

AVG Safe Search
9.0.0.783
true
{3f963a5b-e555-4543-90e2-c3908898db71}

AVG Security Toolbar
4.002.023.004
true
avg@igeared

Comment 7

[Greg Mosher]

This has been replicated by AVG support and confirmed to be a problem in the AVG Security Toolbar.  This is a high priority bug internally for AVG and is assigned to the iGeared team.  Fix ETA will be provided once analysis is complete.

Comment 8

[chris hofmann]

Hi Greg, Thanks for the fast response.

Comment 9

[Greg Mosher]

No more updates, will check with the iGeared team.

Comment 10

[(mostly gone) XtC4UaLL [:xtc4uall]]

What is the Status here?
Is a Regression Window still wanted?

Comment 11

[Mike Beltzner [:beltzner, not reading bugmail]]

Seems to be a confirmed problem with AVG's product, so not sure a regression window is needed anymore. Removing keyword.

Comment 12

[Greg Mosher]

This was resolved in the AVG toolbar versions 4.1 and later.