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Can't get Firefox to open a new tab as my homepage or a specific url. Alwatys get 'The address isn't valid'

Posted

When opening a new tab, I keep getting 'The Address isn't valid'. Went through all the fixes given in previous threads, changing the url in about:config, running Firefox in safe mode (problem still exists with plugins disabled) resetting Firefox, changed newtab settings to about:home etc, restarted, deleted cookies. Nothing seems to work. Some other program seems to be overriding the Firefox settings. May be a virus. I am using the latest McAfee software.

I once had an add-on that brought up thumbnails with a new tab but I removed that a while back. On the right hand side search bar of firefox I can see that Bing is one of the dropdown search engine choices not that it should make a difference but I thougth they were sometimes a bit aggresive.

Anyhow, would love to know if there is a solution as it's making me suspicious of having an undetected visus or hijacking.

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Next Generation Java Plug-in 10.9.2 for Mozilla browsers
  • Google Update
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • McAfee MSC FF plugin DLL
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.4
  • VLC media player Web Plugin 2.0.2
  • SiteAdvisor
  • 5.1.10411.0
  • DivX Plus Web Player version 2.2.0.52
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.1
  • DivX VOD Helper Plug-in
  • NPWLPG
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • NVIDIA 3D Vision plugin for Mozilla browsers
  • iLok Client Helper Plugin
  • McAfee Virtual Technician plugin for Mozilla (Gecko Version: 1.8b1)
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers
  • Adobe Shockwave for Director Netscape plug-in, version 11.0
  • Office Plugin for Netscape Navigator

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0

More Information

Application Basics
Name
Firefox
Version
17.0.1
User Agent
Mozilla/5.0 (Windows NT 6.1; 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
Adobe Acrobat - Create PDF
1.1
false
web2pdfextension@web2pdf.adobedotcom
DivX Plus Web Player HTML5 <video>
2.1.2.145
false
{23fcfd51-4958-4f00-80a3-ae97e717ed8b}
McAfee SiteAdvisor
3.5.0
false
{4ED1F68A-5463-4931-9384-8FFF5ED91D92}
Important Modified Preferences
Name
Value
browser.cache.disk.capacity
358400
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size.use_old_max
false
browser.cache.disk.smart_size_cached_value
358400
browser.places.smartBookmarksVersion
4
browser.search.useDBForOrder
true
browser.startup.homepage
http://www.google.ie/
browser.startup.homepage_override.buildID
20121128204232
browser.startup.homepage_override.mstone
17.0.1
extensions.lastAppVersion
17.0.1
gfx.direct3d.prefer_10_1
true
network.cookie.prefsMigrated
true
places.history.expiration.transient_current_max_pages
104858
privacy.sanitize.migrateFx3Prefs
true
privacy.sanitize.timeSpan
0
Graphics
Adapter Description
NVIDIA GeForce GT 555M
Vendor ID
0x10de
Device ID
0x0dcd
Adapter RAM
3072
Adapter Drivers
nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Driver Version
8.17.12.6594
Driver Date
11-29-2010
Direct2D Enabled
true
DirectWrite Enabled
true (6.1.7601.17789)
ClearType Parameters
ClearType parameters not found
WebGL Renderer
Google Inc. -- ANGLE (NVIDIA GeForce GT 555M ) -- OpenGL ES 2.0 (ANGLE 1.0.0.1242)
GPU Accelerated Windows
3/3 Direct3D 10
AzureCanvasBackend
direct2d
AzureFallbackCanvasBackend
cairo
AzureContentBackend
direct2d
JavaScript
Incremental GC
1
Accessibility
Activated
0
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

cor-el
  • Top 10 Contributor
  • Moderator
10740 solutions 96657 answers

This issue can be caused by an extension that isn't working properly.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do not click the Reset button on the Safe mode start window or otherwise make changes.

Helpful Reply

Thanks for your relpy but I've already tried these solutions and no joy. I tried them again there just to be sure but still no good.

In the mean time I installed a plug-in that does this for me. I used My Homepage 1.2 and it's done the business.

Still don't know what was causing the problem. (And it wasn't a typo, I checked and copied and pasted urls from other locations...)

cor-el
  • Top 10 Contributor
  • Moderator
10740 solutions 96657 answers

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:


Create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files.

thespud1 0 solutions 1 answers

I was able to get firefox to load a homepage by removing the about and just entering the page, ie gmail.com.