Opened on 11/07/2014 at 10:04:44 AM

Closed on 12/02/2015 at 01:18:03 PM

#1545 closed defect (fixed)

Blocked items slowing page loading

Reported by: fanboy Assignee:
Priority: P5 Milestone: Adblock-Plus-2.7-for-Firefox
Module: Adblock-Plus-for-Firefox Keywords: e10s
Cc: mapx, arthur Blocked By: #3222
Blocking: Platform: Firefox
Ready: yes Confidential: no
Tester: Unknown Verified working: no
Review URL(s):



Regression range:

1414841409/ 01-Nov-2014 14:26 GOOD
1414953004/ 02-Nov-2014 21:39 BAD

1414945714/ 02-Nov-2014 18:36 GOOD
1414947458/ 02-Nov-2014 18:56 BAD

How to reproduce

  1. Using Firefox nightlies.
  2. Open Blocked items first
  3. Visit (Using Easylist + Easyprivacy)
  4. Page loads around Twice as slow
  5. Close Blocked items, and refresh, page renders at normal speed.


Observed behaviour

Timed the site with Blocked items showing, is around 2 twice as slow and makes the browser a lot slower while it loads the bloocked items.

Expected behaviour

Showing adblock blocked items shouldn't slow down browsing loading.

Attachments (0)

Change History (7)

comment:1 Changed on 11/07/2014 at 06:42:35 PM by mapx

  • Cc mapx added

comment:2 Changed on 03/02/2015 at 09:22:29 AM by arthur

  • Cc arthur added

This issue is still present.

E: apparently an e10s issue, it doesn't happen when disabled.

Last edited on 03/02/2015 at 09:40:58 AM by arthur

comment:3 Changed on 05/20/2015 at 02:22:39 PM by philll

  • Platform changed from Firefox/Firefox Mobile to Firefox

Made Firefox and Firefox mobile available as seperate platforms.

comment:4 Changed on 10/09/2015 at 05:14:11 PM by arthur

  • Tester set to Unknown

It's still slow. I found out that it's the "Count filter hits" option that causes the slow down.

comment:5 Changed on 10/16/2015 at 03:39:35 PM by arthur

  • Keywords e10s added

comment:6 Changed on 10/23/2015 at 01:41:31 PM by trev

  • Blocked By 3222 added
  • Component changed from Unknown to Adblock-Plus-for-Firefox
  • Priority changed from Unknown to P5
  • Ready set

This will be fixed by #3222.

comment:7 Changed on 12/02/2015 at 01:18:03 PM by trev

  • Milestone set to Adblock-Plus-for-Firefox-next
  • Resolution set to fixed
  • Status changed from new to closed

With #3222 fixed in the development builds this issue should be fixed as well.

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