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[Bug 1037806] New: kmozillahelper consumes 100% of CPU
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Fri, 05 May 2017 13:49:01 +0000
  • Message-id: <>

Bug ID: 1037806
Summary: kmozillahelper consumes 100% of CPU
Classification: openSUSE
Product: openSUSE Distribution
Version: Leap 42.2
Hardware: Other
OS: Other
Status: NEW
Severity: Normal
Priority: P5 - None
Component: Firefox
Assignee: bnc-team-mozilla@xxxxxxxxxxxxxxxxxxxxxx
Reporter: vkrevs@xxxxxxxxx
QA Contact: qa-bugs@xxxxxxx
Found By: ---
Blocker: ---

Created attachment 723976
partial kmozillahelper strace output

Every time I click on an unread HTML email with web links in Thunderbird, it
spawns a new instance of kmozillahelper and kmozillahelper spends up to a
minute enumerating plugins in /usr/lib64/qt5/plugins/kf5/ and services in
/usr/share/kservices5/ fully utilizing one CPU core.

This happens for each new unread HTML email.

See attached strace output for sample activity log. Also, it seems that some
plugins (like are processed more than once). JUst grep the attached
strace output for (or any other .so name).

IMHO, TB should not spawn a new kmozillahelper process for each email, and
should avoid rescanning plugins/services each time ...

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