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Firefox 4 is slow and uses a lot of memory with Adblock Plus

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  • 534 have this problem
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Posted

I have been using Firefox and Adblock Plus and I have been happy with it. Then I installed the Firefox 4 release candidate, and it was running slow and using lots of memory (usually almost 1 GB, sometimes more). After some experimentation, I noticed that it runs fine if I disable Adblock.

Additional System Details

Installed Plug-ins

  • iPhoto6
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • DivX Web Player version 2.0.2.39
  • The Flip4Mac WMV Plugin allows you to view Windows Media content using QuickTime.
  • The Google Earth Plugin allows you to view 3D imagery and terrain in your web browser.
  • 4.0.50917.0
  • Version 1.9.2.1599
  • Google Talk Plugin Video Accelerator version:0.1.43.4
  • Java Plug-In 2 for NPAPI Browsers
  • Shockwave Flash 10.2 r152

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0) Gecko/20100101 Firefox/4.0

More Information

Application Basics
Name
Firefox
Version
4.0
User Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0) Gecko/20100101 Firefox/4.0
Profile Directory
Show in Finder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Extensions
Name
Version
Enabled
ID
Firefox PDF Plugin for Mac OS X
1.1.3
false
colesbury@gmail.com
Screengrab
0.96.3
false
{02450954-cdd9-410f-b1da-db804e18c671}
Context Search
0.4.6
true
{902D2C4A-457A-4EF9-AD43-7014562929FF}
Web Developer
1.1.9
false
{c45c406e-ab73-11d8-be73-000a95be3b12}
Firebug
1.7X.0b3
true
firebug@software.joehewitt.com
Open in Browser
1.9
true
openinbrowser@www.spasche.net
BugMeNot
2.2
true
{987311C6-B504-4aa2-90BF-60CC49808D42}
Adblock Plus
1.3.3
false
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
accessibility.warn_on_browsewithcaret
false
browser.history_expire_days.mirror
180
browser.places.importBookmarksHTML
false
browser.places.smartBookmarksVersion
2
browser.startup.homepage
reddit.com
browser.startup.homepage_override.buildID
20110318052756
browser.startup.homepage_override.mstone
rv:2.0
browser.tabs.tabMaxWidth
500
dom.disable_window_move_resize
true
extensions.lastAppVersion
4.0
font.default.x-western
sans-serif
font.name.monospace.x-western
Andale Mono
font.name.sans-serif.x-western
Verdana
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1300562015
places.history.expiration.transient_current_max_pages
56371
places.last_vacuum
1296112702
print.macosx.pagesetup-2
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHBsaXN0IFBVQkxJQyAiLS8vQXBwbGUvL0RURCBQTElTVCAxLjAvL0VO…
print.print_bgcolor
false
print.print_bgimages
false
print.print_command
print.print_downloadfonts
false
print.print_evenpages
true
print.print_in_color
true
print.print_margin_bottom
0.5
print.print_margin_left
0.5
print.print_margin_right
0.5
print.print_margin_top
0.5
print.print_oddpages
true
print.print_orientation
0
print.print_pagedelay
500
print.print_paper_data
0
print.print_paper_height
11.00
print.print_paper_size_type
1
print.print_paper_size_unit
0
print.print_paper_width
8.50
print.print_printer
print.print_reversed
false
print.print_scaling
1.00
print.print_shrink_to_fit
true
print.print_to_file
false
print.print_unwriteable_margin_bottom
56
print.print_unwriteable_margin_left
25
print.print_unwriteable_margin_right
25
print.print_unwriteable_margin_top
25
privacy.cpd.cookies
false
privacy.cpd.downloads
false
privacy.cpd.formdata
false
privacy.cpd.history
false
privacy.cpd.sessions
false
privacy.popups.showBrowserMessage
false
privacy.sanitize.migrateFx3Prefs
true
security.warn_viewing_mixed
false
Graphics
Adapter Description
0x22600,0x20400
Vendor ID
0000
Device ID
0000
Adapter RAM
Adapter Drivers
Driver Version
Driver Date
Direct2D Enabled
false
DirectWrite Enabled
false
WebGL Renderer
NVIDIA Corporation -- NVIDIA GeForce 9400M OpenGL Engine -- 2.1 NVIDIA-1.6.26
GPU Accelerated Windows
2/2 OpenGL

Question owner

I got Firefox 4 on my Windows computer at work and it seems to run fine, even with Adblock Plus. AFAIK, the problem only happens in OS X.

FearedNightmare 0 solutions 1 answers

Helpful Reply

I have a Windows computer and i did have Adblock Plus and it made my Firefox slow and use up a lot of memory even before Firefox4 only uses up about 200mb now instead of usual 1gig+ I downloaded SecurityHeroes add-on now to block adds Without this post i would of never known that it was because of that one add-on that my browser was so slow