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How do I stop Firefox 4 from automatically entering Private Browsing mode?

Posted

It appears to randomly enter Private Browsing mode. When I check the history when Firefox is open, it will appear but when I exit and restart The history is clear. I think it is possibly triggered by https sites but I'm not sure, so it appears to be random. I have never used nor turned on Private Browsing.

It appears to randomly enter Private Browsing mode. When I check the history when Firefox is open, it will appear but when I exit and restart The history is clear. I think it is possibly triggered by https sites but I'm not sure, so it appears to be random. I have never used nor turned on Private Browsing.

Modified by cleverlymadeup

Chosen solution

You have a corrupted user agent the identifies you as Firefox/3.0.10

  • Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10; .NET CLR 3.0; ffco7) Gecko/2009042316 Firefox/3.0.10

See also:


  • You enter Private Browsing mode if you select: Tools > Options > Privacy > History: Firefox will: "Never Remember History"
  • To see all History and Cookie settings, choose: Tools > Options > Privacy, choose the setting Firefox will: Use custom settings for history
  • Uncheck: [ ] "Automatically start Firefox in a private browsing session"

See also:

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

Read this answer in context 3

Additional System Details

Installed Plug-ins

  • 6.0.12.1739
  • RealPlayer(tm) LiveConnect-Enabled 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.
  • Adobe PDF Plug-In For Firefox and Netscape "9.4.2"
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Shockwave Flash 10.2 r152
  • Google Update
  • Adobe Shockwave for Director Netscape plug-in, version 11.5.9.615
  • iTunes Detector Plug-in
  • Picasa plugin
  • Next Generation Java Plug-in 1.6.0_24 for Mozilla browsers
  • Yahoo Application State Plugin version 1.0.0.7
  • 4.0.60129.0
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • Npdsplay dll
  • DRM Store Netscape Plugin
  • DRM Netscape Network Object

Application

  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10; .NET CLR 3.0; ffco7) Gecko/2009042316 Firefox/3.0.10

More Information

Application Basics
Name
Firefox
Version
4.0
User Agent
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10; .NET CLR 3.0; ffco7) Gecko/2009042316 Firefox/3.0.10
Profile Directory
Open Containing Folder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Extensions
Name
Version
Enabled
ID
Microsoft .NET Framework Assistant
1.2.1
false
{20a82645-c095-46ed-80e3-08825760534b}
Google Toolbar for Firefox
7.1.20101113Wb1
true
{3112ca9c-de6d-4884-a869-9855de68056c}
Gmail Manager
0.6.4.1
true
{582195F5-92E7-40a0-A127-DB71295901D7}
DownloadHelper
4.8.4
true
{b9db16a4-6edc-47ec-a1f4-b86292ed211d}
Tab Mix Plus
0.3.8.5
true
{dc572301-7619-498c-a57d-39143191b318}
Mouse Gestures Redox
3.0.0
false
{FFA36170-80B1-4535-B0E3-A4569E497DD0}
Skype extension
5.0.0.6906
false
{AB2CE124-6272-4b12-94A9-7303C7397BD1}
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
true
jqs@sun.com
FireGestures
1.6.1
true
firegestures@xuldev.org
Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
browser.fixup.alternate.enabled
false
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_override.buildID
20110318052756
browser.startup.homepage_override.mstone
rv:2.0
browser.tabs.loadBookmarksInBackground
true
browser.tabs.loadDivertedInBackground
true
extensions.lastAppVersion
4.0
general.useragent.extra.microsoftdotnet
( .NET CLR 3.5.30729; .NET4.0E)
general.useragent.override
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10; .NET CLR 3.0; ffco7) Gecko/2009042316 Firefox/3.0.10
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1301170289
places.history.expiration.transient_current_max_pages
64376
places.last_vacuum
1295678765
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
PDFCreator
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
0
print.print_unwriteable_margin_left
0
print.print_unwriteable_margin_right
0
print.print_unwriteable_margin_top
0
print.printer_PDFCreator.print_bgcolor
false
print.printer_PDFCreator.print_bgimages
false
print.printer_PDFCreator.print_command
print.printer_PDFCreator.print_downloadfonts
true
print.printer_PDFCreator.print_edge_bottom
0
print.printer_PDFCreator.print_edge_left
0
print.printer_PDFCreator.print_edge_right
0
print.printer_PDFCreator.print_edge_top
0
print.printer_PDFCreator.print_evenpages
true
print.printer_PDFCreator.print_footercenter
print.printer_PDFCreator.print_footerleft
&PT
print.printer_PDFCreator.print_footerright
&D
print.printer_PDFCreator.print_headercenter
print.printer_PDFCreator.print_headerleft
&T
print.printer_PDFCreator.print_headerright
&U
print.printer_PDFCreator.print_in_color
true
print.printer_PDFCreator.print_margin_bottom
0.5
print.printer_PDFCreator.print_margin_left
0.5
print.printer_PDFCreator.print_margin_right
0.5
print.printer_PDFCreator.print_margin_top
0.5
print.printer_PDFCreator.print_oddpages
true
print.printer_PDFCreator.print_orientation
0
print.printer_PDFCreator.print_pagedelay
500
print.printer_PDFCreator.print_paper_data
9
print.printer_PDFCreator.print_paper_height
11.00
print.printer_PDFCreator.print_paper_size
1841757590
print.printer_PDFCreator.print_paper_size_type
0
print.printer_PDFCreator.print_paper_size_unit
1
print.printer_PDFCreator.print_paper_width
8.50
print.printer_PDFCreator.print_reversed
false
print.printer_PDFCreator.print_scaling
1.00
print.printer_PDFCreator.print_shrink_to_fit
true
print.printer_PDFCreator.print_to_file
false
print.printer_PDFCreator.print_unwriteable_margin_bottom
0
print.printer_PDFCreator.print_unwriteable_margin_left
0
print.printer_PDFCreator.print_unwriteable_margin_right
0
print.printer_PDFCreator.print_unwriteable_margin_top
0
privacy.cpd.downloads
false
privacy.cpd.extensions-tabmix
false
privacy.cpd.formdata
false
privacy.cpd.history
false
privacy.cpd.sessions
false
privacy.sanitize.migrateFx3Prefs
true
privacy.sanitize.timeSpan
0
security.warn_viewing_mixed.show_once
false
Graphics
Adapter Description
NVIDIA GeForce GTS 250
Vendor ID
10de
Device ID
0615
Adapter RAM
Unknown
Adapter Drivers
nv4_disp
Driver Version
6.14.12.5896
Driver Date
7-9-2010
Direct2D Enabled
false
DirectWrite Enabled
false (0.0.0.0, font cache n/a)
WebGL Renderer
Google Inc. -- ANGLE -- OpenGL ES 2.0 (ANGLE 0.0.0.541)
GPU Accelerated Windows
2/2 Direct3D 9

the-edmeister
  • Top 10 Contributor
  • Moderator
4038 solutions 30446 answers

Firefox 3.0.10 doesn't have a Private Browsing mode, that was added to Firefox in version 3.5.

Firefox 3.0.10 doesn't have a Private Browsing mode, that was added to Firefox in version 3.5.

Question owner

It's not version 3.0.10. Like the question states it's Firefox 4

It's not version 3.0.10. Like the question states it's Firefox 4
cor-el
  • Top 10 Contributor
  • Moderator
12762 solutions 117253 answers

Chosen Solution

You have a corrupted user agent the identifies you as Firefox/3.0.10

  • Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10; .NET CLR 3.0; ffco7) Gecko/2009042316 Firefox/3.0.10

See also:


  • You enter Private Browsing mode if you select: Tools > Options > Privacy > History: Firefox will: "Never Remember History"
  • To see all History and Cookie settings, choose: Tools > Options > Privacy, choose the setting Firefox will: Use custom settings for history
  • Uncheck: [ ] "Automatically start Firefox in a private browsing session"

See also:

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

You have a corrupted user agent the identifies you as Firefox/3.0.10 * Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10; .NET CLR 3.0; ffco7) Gecko/2009042316 Firefox/3.0.10 See also: * [[Web sites or add-ons incorrectly report incompatible browser]] ---- * You enter Private Browsing mode if you select: Tools > Options > Privacy > History: Firefox will: "Never Remember History" * To see all History and Cookie settings, choose: Tools > Options > Privacy, choose the setting <b>Firefox will: Use custom settings for history</b> * Uncheck: [ ] "Automatically start Firefox in a private browsing session" See also: * [[Preferences are not saved]] Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes). * Don't make any changes on the Safe mode start window. See: * [[Troubleshooting extensions and themes]]

Question owner

Actually it seems to be something with the FireGestures. I had uninstalled FF and deleted the preferences and such. So I had a fresh copy of the browser. It still did the same thing. Disabled FireGestures and it stopped doing it.

Now I need to find a good mouse gesture addon

Actually it seems to be something with the FireGestures. I had uninstalled FF and deleted the preferences and such. So I had a fresh copy of the browser. It still did the same thing. Disabled FireGestures and it stopped doing it. Now I need to find a good mouse gesture addon

Question owner

Actually this wasn't solved. It's not really Private Browsing as much as history just stops being added. It's not an add-on, it's something with FireFox 4. It seems that https triggers it.

Actually this wasn't solved. It's not really Private Browsing as much as history just stops being added. It's not an add-on, it's something with FireFox 4. It seems that https triggers it.