Why is Firefox suddenly making my internet so slow?
Firefox is running very slowly now. Videos on all sites take forever to load, if they load at all. & games are choppy & run in slow motion. Firefox is also often completely unresponsive, & randomly freezes when typing comments, clicking links, etc. I had some problems before, but since upgrading to Firefox 13, it's been ridiculously bad. I even called my internet provider, Charter, cause I thought it was somethin they were doin. Their Speed Test is one reason I know it's not them. When I run the Speed Test using Windows IE, I get these results: http://speedtest.ookla.com/result/1702077109.png When I run that same test through Firefox, I get these results: http://speedtest.ookla.com/result/1702070678.png I've already tried several things to fix this, including a complete uninstall/re-install.
All Replies (7)
That's really strange.
- First, can you click on the Firefox button, go to Options, click on Options.
- In the options windows, please select the Advanced pane.
- Under Connection, click Settings. If anything other than Use system proxy settings is selected, change it to that option.
If that doesn't work, please do the following:
- Click the Firefox button at the top left, then click the Help menu and select Troubleshooting information from the submenu. If you don't have a Firefox button, click the Help menu at the top and select Troubleshooting information from the menu.
Now, a new tab containing your troubleshooting information should open.
- At the top of the page, you should see a button that says "Copy all to clipboard. Click it.
- Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.
If you need further information about the Troubleshooting information page, please read the article Use the Troubleshooting Information page to help fix Firefox issues.
Thanks in advance for your help!
A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
You can try to reset Firefox and create a new profile.
Application Basics
Name
Firefox
Version
13.0.1
User Agent
Mozilla/5.0 (Windows NT 6.0; rv:13.0) Gecko/20100101 Firefox/13.0.1
Profile Folder
Show Folder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
Important Modified Preferences
Name
Value
accessibility.blockautorefresh
true
accessibility.typeaheadfind.flashBar
0
browser.cache.disk.capacity
1048576
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size_cached_value
901120
browser.display.background_color
#C0C0C0
browser.display.use_system_colors
true
browser.places.smartBookmarksVersion
3
browser.startup.homepage
http://www.bing.com/?pc=MOZO
browser.startup.homepage_override.buildID
20120614114901
browser.startup.homepage_override.mstone
13.0.1
browser.startup.homepage_reset
http://www.bing.com/?pc=MOZO
dom.ipc.plugins.enabled.np2zstub.dll
false
dom.max_script_run_time
0
extensions.lastAppVersion
13.0.1
general.useragent.extra.microsoftdotnet
( .NET CLR 3.5.30729; .NET4.0C)
keyword.URL
http://search.yahoo.com/search?fr=mcafee&p=
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1340513480
places.history.expiration.transient_current_max_pages
51864
places.history.expiration.transient_optimal_database_size
82982010
places.last_vacuum
1295680592
privacy.clearOnShutdown.cookies
false
privacy.clearOnShutdown.sessions
false
privacy.cpd.formdata
false
privacy.cpd.sessions
false
privacy.sanitize.migrateFx3Prefs
true
privacy.sanitize.timeSpan
0
security.csp.enable
false
security.enable_ssl2
true
security.enable_tls
false
security.warn_entering_weak
false
security.warn_viewing_mixed
false
security.warn_viewing_mixed.show_once
false
Graphics
Adapter Description
Mobile Intel(R) 4 Series Express Chipset Family
Vendor ID
0x8086
Device ID
0x2a42
Adapter RAM
Unknown
Adapter Drivers
igdumdx32 igd10umd32
Driver Version
8.15.10.2302
Driver Date
2-11-2011
Direct2D Enabled
false
DirectWrite Enabled
false (7.0.6002.18592)
ClearType Parameters
ClearType parameters not found
WebGL Renderer
Google Inc. -- ANGLE (Mobile Intel(R) 4 Series Express Chipset Family) -- OpenGL ES 2.0 (ANGLE 1.0.0.963)
GPU Accelerated Windows
1/1 Direct3D 9
JavaScript
Incremental GC
1
Library Versions
Expected minimum version
Version in use
NSPR
4.9
4.9
NSS
3.13.4.0 Basic ECC
3.13.4.0 Basic ECC
NSS Util
3.13.4.0
3.13.4.0
NSS SSL
3.13.4.0 Basic ECC
3.13.4.0 Basic ECC
NSS S/MIME
3.13.4.0 Basic ECC
3.13.4.0 Basic ECC
Why do you have TLS disabled (security.enable_tls)?
BTW, SSL2 is not longer supported (Bug 593077 - Remove SSL 2.0 support), so you can reset the security.enable_ssl2 pref.
Did you try a new profile or reset Firefox?
Don't know what TLS is or how it gets enabled/disabled. Also not familiar with SSL2. (I guess I'm not what you'd call an "advanced" user) As for the trying a new profile or resetting, I completely uninstalled Firefox, including my personal preferences, & started over. This is a fresh download, with only the most basic add-ons, like Flash & Java. I never had problems this bad until the update to 13.
See https://support.mozilla.org/en-US/kb/settings-network-updates-and-encryption#w_protocols
Which security software (firewall, anti-virus) do you have?
I have the same issue. I completely disabled Norton 360 Firewall after removing and resetting setting permissions to Allow. It is still slow with no firewall.
Application Basics
Name
Firefox
Version
17.0.1
User Agent
Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0
Profile Folder
Show Folder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
Greasemonkey
1.5
true
{e4a8a97b-f2ed-450b-b12d-ee082ba24781}
Java Console
6.0.35
true
{CAFEEFAC-0016-0000-0035-ABCDEFFEDCBA}
Motive Extension
1.0
true
mcciwbch@motive.com
Norton Toolbar
2013.2.2.3
true
{2D3F3651-74B9-4795-BDEC-6DA2F431CB62}
Norton Vulnerability Protection
11.1.1.5 - 3
true
{BBDA0591-3099-440a-AA10-41764D9DB4DB}
RoboForm Toolbar for Firefox
7.8.4.7
true
{22119944-ED35-4ab1-910B-E619EA06A115}
Xmarks
4.1.3
true
foxmarks@kei.com
Skype extension for Firefox
4.2.0.5198
false
{AB2CE124-6272-4b12-94A9-7303C7397BD1}
Important Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
browser.cache.disk.capacity
1048576
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size_cached_value
890880
browser.places.smartBookmarksVersion
4
browser.startup.homepage
https://www.google.com/
browser.startup.homepage_override.buildID
20121128204232
browser.startup.homepage_override.mstone
17.0.1
browser.tabs.warnOnClose
false
extensions.lastAppVersion
17.0.1
gfx.direct3d.prefer_10_1
true
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1353868932
places.history.expiration.transient_current_max_pages
104858
privacy.clearOnShutdown.cookies
false
privacy.clearOnShutdown.downloads
false
privacy.clearOnShutdown.formdata
false
privacy.clearOnShutdown.history
false
privacy.cpd.offlineApps
true
privacy.cpd.siteSettings
true
privacy.sanitize.migrateFx3Prefs
true
privacy.sanitize.promptOnSanitize
false
privacy.sanitize.sanitizeOnShutdown
true
privacy.sanitize.timeSpan
0
security.warn_viewing_mixed
false
Graphics
Adapter Description
NVIDIA GeForce GT 445M (Microsoft Corporation - WDDM v1.2)
Vendor ID
0x10de
Device ID
0x0dd2
Adapter RAM
3071
Adapter Drivers
nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Driver Version
9.18.13.286
Driver Date
6-21-2012
Direct2D Enabled
true
DirectWrite Enabled
true (6.2.9200.16433)
ClearType Parameters
ClearType parameters not found
WebGL Renderer
Google Inc. -- ANGLE (NVIDIA GeForce GT 445M (Microsoft Corporation - WDDM v1.2)) -- OpenGL ES 2.0 (ANGLE 1.0.0.1242)
GPU Accelerated Windows
1/1 Direct3D 10
AzureCanvasBackend
direct2d
AzureFallbackCanvasBackend
cairo
AzureContentBackend
direct2d
JavaScript
Incremental GC
1
Accessibility
Activated
1
Prevent Accessibility
0
Library Versions
Expected minimum version
Version in use
NSPR
4.9.2
4.9.2
NSS
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC
NSS Util
3.13.6.0
3.13.6.0
NSS SSL
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC
NSS S/MIME
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC