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Some websites, Mozilla included, appear to think I'm using a different version of Firefox from the one I am using; how can I fix this?

Posted

I was attempting to install an addon but it said "Not available for Firefox 2.0.0.16" and would not allow me to install the addon. I haven't used that version of Firefox since ... I don't know when. Actually I don't know that I've ever used that version on this computer. I've used several 3.xx versions and currently running 4.0.1. I've tried uninstalling and reinstalling Firefox and I still have the problem. It may be every site, but I know for certain Hotmail and Youtube also both incorrectly identify my browser version.

Chosen solution

Something that you installed has changed your User-agent.

Your User-agent shows as follows. You can click on "More system details..." to the right of your original question and scroll all the way to the bottom of that display to see it for yourself. That "ffco7)" looks like it does not belong.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.16; .NET CLR 2.0.50727; ffco7) Gecko/20080702 Firefox/2.0.0.16

Follow the instructions in this article to see if that corrects your problem:




You need to update the following. The Plugin version(s) shown below was/were submitted with your question and is/are out of date. You should update to avoid known security issues with the version(s) you have installed. Click on "More system info..." to the right of your question to see what was included with your question.

  • Adobe Shockwave for Director Netscape plug-in, version 10.2
  1. Check your plugin versions on either of the following links':
  2. Update Shockwave for Director
    • NOTE: this is not the same as Shockwave Flash; this installs the Shockwave Player.
    • Use Firefox to download and SAVE the installer to your hard drive from the link in the article below (Desktop is a good place so you can find it).
    • When the download is complete, exit Firefox (File > Exit)
    • locate and double-click in the installer you just downloaded, let the install complete.
    • Restart Firefox and check your plugins again.
    • Download link and more information: http://support.mozilla.com/en-US/kb/Using+the+Shockwave+plugin+with+Firefox



You show multiple Java Console versions in your Extensions list. You need to remove those in the list below by following the instructions in this artile: http://kb.mozillazine.org/Java#Multiple_Java_Console_extensions

  • Java Console 6.0.07 {CAFEEFAC-0016-0000-0007-ABCDEFFEDCBA}
  • Java Console 6.0.10 {CAFEEFAC-0016-0000-0010-ABCDEFFEDCBA}
  • Java Console 6.0.12 {CAFEEFAC-0016-0000-0012-ABCDEFFEDCBA}
  • Java Console 6.0.13 {CAFEEFAC-0016-0000-0013-ABCDEFFEDCBA}
  • Java Console 6.0.14 {CAFEEFAC-0016-0000-0014-ABCDEFFEDCBA}
  • Java Console 6.0.15 {CAFEEFAC-0016-0000-0015-ABCDEFFEDCBA}
  • Java Console 6.0.17 {CAFEEFAC-0016-0000-0017-ABCDEFFEDCBA}
  • Java Console 6.0.19 {CAFEEFAC-0016-0000-0019-ABCDEFFEDCBA}
  • Java Console 6.0.20 {CAFEEFAC-0016-0000-0020-ABCDEFFEDCBA}
  • Java Console 6.0.21 {CAFEEFAC-0016-0000-0021-ABCDEFFEDCBA}
  • Java Console 6.0.22 {CAFEEFAC-0016-0000-0022-ABCDEFFEDCBA}
  • Java Console 6.0.23 {CAFEEFAC-0016-0000-0023-ABCDEFFEDCBA}
  • Java Console 6.0.24 {CAFEEFAC-0016-0000-0024-ABCDEFFEDCBA}
Read this answer in context 0

Additional System Details

Sites Affected

http://mozilla.com/

Installed Plug-ins

  • 1.7.0036.0
  • Adobe Shockwave for Director Netscape plug-in, version 10.2
  • RealArcade_NPAPI_Plugin
  • PopCap Games Plugin
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • 12.0.1.647
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealJukebox Netscape Plugin
  • Adobe PDF Plug-In For Firefox and Netscape "9.4.5"
  • Shockwave Flash 10.3 r181
  • iTunes Detector Plug-in
  • Next Generation Java Plug-in 1.6.0_26 for Mozilla browsers
  • RealPlayer(tm) HTML5VideoShim Plug-In
  • RealNetworks(tm) RealPlayer Chrome Background Extension Plug-In
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Npdsplay dll
  • DRM Store Netscape Plugin

Application

  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.16; .NET CLR 2.0.50727; ffco7) Gecko/20080702 Firefox/2.0.0.16

More Information

Application Basics
Name
Firefox
Version
4.0.1
User Agent
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.16; .NET CLR 2.0.50727; ffco7) Gecko/20080702 Firefox/2.0.0.16
Profile Directory
Open Containing Folder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Extensions
Name
Version
Enabled
ID
NoScript
2.1.1.2rc1
true
{73a6fe31-595d-460b-a920-fcc0f8843232}
Move Media Player
1.0.0.071303000006
true
moveplayer@movenetworks.com
Microsoft .NET Framework Assistant
1.2.1
false
{20a82645-c095-46ed-80e3-08825760534b}
Java Console
6.0.07
true
{CAFEEFAC-0016-0000-0007-ABCDEFFEDCBA}
Java Console
6.0.10
true
{CAFEEFAC-0016-0000-0010-ABCDEFFEDCBA}
Java Console
6.0.12
true
{CAFEEFAC-0016-0000-0012-ABCDEFFEDCBA}
Java Console
6.0.13
true
{CAFEEFAC-0016-0000-0013-ABCDEFFEDCBA}
Java Console
6.0.14
true
{CAFEEFAC-0016-0000-0014-ABCDEFFEDCBA}
Java Console
6.0.15
true
{CAFEEFAC-0016-0000-0015-ABCDEFFEDCBA}
Java Console
6.0.17
true
{CAFEEFAC-0016-0000-0017-ABCDEFFEDCBA}
Java Console
6.0.19
true
{CAFEEFAC-0016-0000-0019-ABCDEFFEDCBA}
Java Console
6.0.20
true
{CAFEEFAC-0016-0000-0020-ABCDEFFEDCBA}
Java Console
6.0.21
true
{CAFEEFAC-0016-0000-0021-ABCDEFFEDCBA}
Java Console
6.0.22
true
{CAFEEFAC-0016-0000-0022-ABCDEFFEDCBA}
Java Console
6.0.23
true
{CAFEEFAC-0016-0000-0023-ABCDEFFEDCBA}
Java Console
6.0.24
true
{CAFEEFAC-0016-0000-0024-ABCDEFFEDCBA}
Java Quick Starter
1.0
false
jqs@sun.com
AVG Security Toolbar
6.103.018.001
true
avg@igeared
RealPlayer Browser Record Plugin
14.0.3
true
{ABDE892B-13A8-4d1b-88E6-365A6E755758}
AVG Safe Search
10.0.0.1374
true
{1E73965B-8B48-48be-9C8D-68B920ABC1C4}
Java Console
6.0.26
true
{CAFEEFAC-0016-0000-0026-ABCDEFFEDCBA}
Adblock Plus
1.3.8
true
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
browser.history_expire_days.mirror
180
browser.places.importBookmarksHTML
false
browser.places.importDefaults
false
browser.places.leftPaneFolderId
-1
browser.places.migratePostDataAnnotations
false
browser.places.smartBookmarksVersion
2
browser.places.updateRecentTagsUri
false
browser.startup.homepage
about:blank
browser.startup.homepage_override.buildID
20110413222027
browser.startup.homepage_override.mstone
rv:2.0.1
extensions.lastAppVersion
4.0.1
general.useragent.extra.microsoftdotnet
( .NET CLR 3.5.30729)
general.useragent.override
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.16; .NET CLR 2.0.50727; ffco7) Gecko/20080702 Firefox/2.0.0.16
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1308410500
places.history.expiration.transient_current_max_pages
96576
places.last_vacuum
1303453691
print.print_printer
HP OfficeJet K60
print.printer_HP_OfficeJet_K60.print_bgcolor
false
print.printer_HP_OfficeJet_K60.print_bgimages
false
print.printer_HP_OfficeJet_K60.print_command
print.printer_HP_OfficeJet_K60.print_downloadfonts
true
print.printer_HP_OfficeJet_K60.print_edge_bottom
0
print.printer_HP_OfficeJet_K60.print_edge_left
0
print.printer_HP_OfficeJet_K60.print_edge_right
0
print.printer_HP_OfficeJet_K60.print_edge_top
0
print.printer_HP_OfficeJet_K60.print_evenpages
true
print.printer_HP_OfficeJet_K60.print_footercenter
print.printer_HP_OfficeJet_K60.print_footerleft
&PT
print.printer_HP_OfficeJet_K60.print_footerright
&D
print.printer_HP_OfficeJet_K60.print_headercenter
print.printer_HP_OfficeJet_K60.print_headerleft
&T
print.printer_HP_OfficeJet_K60.print_headerright
&U
print.printer_HP_OfficeJet_K60.print_in_color
true
print.printer_HP_OfficeJet_K60.print_margin_bottom
0.5
print.printer_HP_OfficeJet_K60.print_margin_left
0.5
print.printer_HP_OfficeJet_K60.print_margin_right
0.5
print.printer_HP_OfficeJet_K60.print_margin_top
0.5
print.printer_HP_OfficeJet_K60.print_oddpages
true
print.printer_HP_OfficeJet_K60.print_orientation
0
print.printer_HP_OfficeJet_K60.print_pagedelay
500
print.printer_HP_OfficeJet_K60.print_paper_data
1
print.printer_HP_OfficeJet_K60.print_paper_height
11.00
print.printer_HP_OfficeJet_K60.print_paper_size
175972384
print.printer_HP_OfficeJet_K60.print_paper_size_type
0
print.printer_HP_OfficeJet_K60.print_paper_size_unit
0
print.printer_HP_OfficeJet_K60.print_paper_width
8.50
print.printer_HP_OfficeJet_K60.print_printer
HP OfficeJet K60
print.printer_HP_OfficeJet_K60.print_reversed
false
print.printer_HP_OfficeJet_K60.print_scaling
1.00
print.printer_HP_OfficeJet_K60.print_shrink_to_fit
true
print.printer_HP_OfficeJet_K60.print_to_file
false
print.printer_HP_OfficeJet_K60.print_unwriteable_margin_bottom
0
print.printer_HP_OfficeJet_K60.print_unwriteable_margin_left
0
print.printer_HP_OfficeJet_K60.print_unwriteable_margin_right
0
print.printer_HP_OfficeJet_K60.print_unwriteable_margin_top
0
privacy.sanitize.migrateFx3Prefs
true
security.warn_viewing_mixed
false
Graphics
Adapter Description
ATI Radeon X300/X550/X1050 Series
Vendor ID
1002
Device ID
5b62
Adapter RAM
Unknown
Adapter Drivers
ati2dvag
Driver Version
8.421.0.0
Driver Date
9-28-2007
Direct2D Enabled
Blocked on your graphics driver. Try updating your graphics driver to version 10.6 or newer.
DirectWrite Enabled
false (0.0.0.0, font cache n/a)
WebGL Renderer
(WebGL unavailable)
GPU Accelerated Windows
0/1

jscher2000
  • Top 10 Contributor
2347 solutions 20813 answers

Helpful Reply

This article has the steps to resolve this annoying problem: Websites or add-ons incorrectly report incompatible browser | Troubleshooting | Firefox Help

Helper7677 165 solutions 1653 answers

Chosen Solution

Something that you installed has changed your User-agent.

Your User-agent shows as follows. You can click on "More system details..." to the right of your original question and scroll all the way to the bottom of that display to see it for yourself. That "ffco7)" looks like it does not belong.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.16; .NET CLR 2.0.50727; ffco7) Gecko/20080702 Firefox/2.0.0.16

Follow the instructions in this article to see if that corrects your problem:




You need to update the following. The Plugin version(s) shown below was/were submitted with your question and is/are out of date. You should update to avoid known security issues with the version(s) you have installed. Click on "More system info..." to the right of your question to see what was included with your question.

  • Adobe Shockwave for Director Netscape plug-in, version 10.2
  1. Check your plugin versions on either of the following links':
  2. Update Shockwave for Director
    • NOTE: this is not the same as Shockwave Flash; this installs the Shockwave Player.
    • Use Firefox to download and SAVE the installer to your hard drive from the link in the article below (Desktop is a good place so you can find it).
    • When the download is complete, exit Firefox (File > Exit)
    • locate and double-click in the installer you just downloaded, let the install complete.
    • Restart Firefox and check your plugins again.
    • Download link and more information: http://support.mozilla.com/en-US/kb/Using+the+Shockwave+plugin+with+Firefox



You show multiple Java Console versions in your Extensions list. You need to remove those in the list below by following the instructions in this artile: http://kb.mozillazine.org/Java#Multiple_Java_Console_extensions

  • Java Console 6.0.07 {CAFEEFAC-0016-0000-0007-ABCDEFFEDCBA}
  • Java Console 6.0.10 {CAFEEFAC-0016-0000-0010-ABCDEFFEDCBA}
  • Java Console 6.0.12 {CAFEEFAC-0016-0000-0012-ABCDEFFEDCBA}
  • Java Console 6.0.13 {CAFEEFAC-0016-0000-0013-ABCDEFFEDCBA}
  • Java Console 6.0.14 {CAFEEFAC-0016-0000-0014-ABCDEFFEDCBA}
  • Java Console 6.0.15 {CAFEEFAC-0016-0000-0015-ABCDEFFEDCBA}
  • Java Console 6.0.17 {CAFEEFAC-0016-0000-0017-ABCDEFFEDCBA}
  • Java Console 6.0.19 {CAFEEFAC-0016-0000-0019-ABCDEFFEDCBA}
  • Java Console 6.0.20 {CAFEEFAC-0016-0000-0020-ABCDEFFEDCBA}
  • Java Console 6.0.21 {CAFEEFAC-0016-0000-0021-ABCDEFFEDCBA}
  • Java Console 6.0.22 {CAFEEFAC-0016-0000-0022-ABCDEFFEDCBA}
  • Java Console 6.0.23 {CAFEEFAC-0016-0000-0023-ABCDEFFEDCBA}
  • Java Console 6.0.24 {CAFEEFAC-0016-0000-0024-ABCDEFFEDCBA}

Question owner

Thank you very much for the quick response and alerting me to the other issues. I've taken the recommended steps and everything seems to be working properly. Thanks again!

Helper7677 165 solutions 1653 answers

You are welcome.