The troubleshooting information I got whilst in safe mode is below

 Application Basics
       Name
       Firefox

       Version
       22.0

       User Agent
       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0

       Build Configuration

         about:buildconfig

 Extensions

       Name

       Version

       Enabled

       ID

       2YourFace
       1
       false
       support@2yourface.com

 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.startup.homepage
       http://www1.delta-search.com/?babsrc=HP_ss&mntrId=1AFE50E549D64625&affID=119357&tsp=4949

       browser.startup.homepage_override.buildID
       20130618035212

       browser.startup.homepage_override.mstone
       22.0

       dom.mozApps.used
       true

       extensions.lastAppVersion
       22.0

       gfx.direct2d.disabled
       true

       layers.acceleration.disabled
       true

       network.cookie.prefsMigrated
       true

       places.history.expiration.transient_current_max_pages
       104858

       plugin.disable_full_page_plugin_for_types
       application/pdf

       plugin.importedState
       true

       privacy.sanitize.migrateFx3Prefs
       true

       toolkit.startup.recent_crashes
       1

 Graphics

       Adapter Drivers
       vga framebuf vga256 vga64k

       Adapter RAM
       Unknown

       Device ID
       0x0000

       Direct2D Enabled
       Blocked for your graphics card because of unresolved driver issues.

       DirectWrite Enabled
       false (6.2.9200.16571)

       GPU #2 Active
       false

       GPU Accelerated Windows
       0/1 Basic Blocked for your graphics card because of unresolved driver issues.

       Vendor ID
       0x0000

       WebGL Renderer
       Blocked for your graphics card because of unresolved driver issues.

       AzureCanvasBackend
       skia

       AzureContentBackend
       none

       AzureFallbackCanvasBackend
       cairo

 JavaScript

       Incremental GC
       true

 Accessibility

       Activated
       false

       Prevent Accessibility
       0

 Library Versions

       Expected minimum version

       Version in use

       NSPR
       4.9.6
       4.9.6

       NSS
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSSMIME
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSSSL
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSUTIL
       3.14.3.0
       3.14.3.0

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try these free programs to scan for malware, which work with your existing antivirus software:

• Microsoft Safety Scanner
• MalwareBytes' Anti-Malware
• TDSSKiller - AntiRootkit Utility
• Hitman Pro
• ESET Online Scanner

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!

Thanks for the reply.

I've run anti-virus programs and nothing was found.

You do have old graphic drivers, have you checked for updates to them? See below.

• Upgrade your graphics drivers to use hardware acceleration and WebGL

I've updated the drivers but Firefox still isn't working.

refer to

• Firefox won't start - find solutions
• Troubleshoot Firefox issues caused by malware

articles.

Hi Waka_Flocka_Flame,

Thanks for your help with this.

The issue isn’t malware as there doesn’t appear to be any. I’ve read through the trouble shooting notes and the only section that seems to apply was that of corrupt profile settings. I created a new profile but that didn’t resolve the issue.

Any more suggestions? Is there are any way that I can get a log of what is causing the issue as that may provide some more detail as to what is causing the error?

Thanks Neil

Enable Firefox through your Firewall/Antivirus.

• http://kb.mozillazine.org/Firefox_:_Issues:_Firefox_Won%27t_Startup
• http://kb.mozillazine.org/index.php?title=Firefox_:_Issues:_Firefox_Won%27t_Startup&redirect=no

Apologies for the delay in replying but, yes, it was the anti-virus software.

thanks for your help, Neil