Question

Can't uninstall and can't use minmise/maximise/exit buttons

I can't use the minmise/maximise/exit buttons top right, so I reset FF on the Troubleshooting page. That hasn't worked so I thought I'd try a new fresh download. I figure it's best to uninstall the exisiting version first so I went to control panel/add & remove but when I hit remove it flashes briefly and does nothing else i.e. no uninstall. I tried going through My Computer/Programs but clicking on the uninstall helper does nothing. Grateful for any help.

Troubleshooting info:


 Application Basics
       Name
       Firefox
       Version
       19.0.2
       User Agent
       Mozilla/5.0 (Windows NT 5.1; rv:19.0) Gecko/20100101 Firefox/19.0
       Build Configuration
         about:buildconfig
 Extensions
       Name
       Version
       Enabled
       ID
       Microsoft .NET Framework Assistant
       0.0.0
       false
       {20a82645-c095-46ed-80e3-08825760534b}
 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_override.buildID
       20130307023931
       browser.startup.homepage_override.mstone
       19.0.2
       extensions.lastAppVersion
       19.0.2
       network.cookie.prefsMigrated
       true
       places.history.expiration.transient_current_max_pages
       13396
       plugin.disable_full_page_plugin_for_types
       application/pdf
       privacy.sanitize.migrateFx3Prefs
       true
 Graphics
       Adapter Description
       NVIDIA GeForce4 MX 440 with AGP8X (Microsoft Corporation)
       Adapter Drivers
       nv4_disp
       Adapter RAM
       Unknown
       Device ID
       0x0181
       Direct2D Enabled
       Blocked for your graphics driver version. Try updating your graphics driver to version 182.65 or newer.
       DirectWrite Enabled
       false (0.0.0.0)
       Driver Date
       4-7-2004
       Driver Version
       5.6.7.3
       GPU #2 Active
       false
       GPU Accelerated Windows
       0/1 Basic Blocked for your graphics driver version. Try updating your graphics driver to version 182.65 or newer.
       Vendor ID
       0x10de
       WebGL Renderer
       Blocked for your graphics driver version. Try updating your graphics driver to version 182.65 or newer.
       AzureCanvasBackend
       cairo
       AzureContentBackend
       none
       AzureFallbackCanvasBackend
       none
 JavaScript
       Incremental GC
       true
 Accessibility
       Activated
       false
       Prevent Accessibility
       0
 Library Versions
       Expected minimum version
       Version in use
       NSPR
       4.9.4
       4.9.4
       NSS
       3.14.1.0 Basic ECC
       3.14.1.0 Basic ECC
       NSSSMIME
       3.14.1.0 Basic ECC
       3.14.1.0 Basic ECC
       NSSSSL
       3.14.1.0 Basic ECC
       3.14.1.0 Basic ECC
       NSSUTIL
       3.14.1.0
       3.14.1.0
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