Tabs won't close,I can open a new one, mouse works on every thing else. ff 36.0 winXP

Question

When I click on a tab to close it I can see the red X press down but it won't close. I can open a new tab and I can click from tab to tab and the windows change. My mouse is working on every thing else, just can't close any tabs. There are six tabs open. This has been an ongoing.problem that seems to be getting more frequent. I usually do a restart and the problem goes away, but only for a short time. I don't
know where to start to fix it. I did notice the automatic updates in windows is turned off. Could that be part of the problem? Should it be turned on? I'm using Windows XP Professional version 5.1.2600 service pack 3. Firefox version 36, just refreshed. Any suggestions?
* Firefox 35.0 *Updated to Firefox 36.0 2/24/15*
* Windows XP Version 5.40.2.0 service pack 3
* Google Update
* NPRuntime Script Plug-in Library for Java(TM) Deploy
* Next Generation Java Plug-in 11.31.2 for Mozilla browsers
* DRM Store Netscape Plugin
* DRM Netscape Network Object
* Shockwave Flash 16.0 r0
* Npdsplay dll
* iTunes Detector Plug-in
* Pop up blockers: on

Answer 1

I'm having this problem also, but I'm currently in safe mode and it's still happening, so I know it's not an addon.
'''Troubleshooting Information''':
(I'm running Win7 Pro, SP1, 64b.)
Application Basics
Name: Firefox
Version: 36.0.1
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
Multiprocess Windows: 0/2
Crash Reports for the Last 3 Days
All Crash Reports
Extensions
Name: Clearly
Version: 10.2.1.7
Enabled: false
ID: [email protected]
Name: Disconnect
Version: 3.15.3
Enabled: false
ID: [email protected]
Name: Feedly Notifier
Version: 2.10.0
Enabled: false
ID: jid1-BOjn8b0IM7kH2w@jetpack
Name: Flash Video Downloader - YouTube HD Download [4K]
Version: 7.2.0
Enabled: false
ID: [email protected]
Name: HTTPS-Everywhere
Version: 4.0.2
Enabled: false
ID: [email protected]
Name: LastPass
Version: 3.1.92
Enabled: false
ID: [email protected]
Name: Max Tabs
Version: 0.2
Enabled: false
ID: maxtabs@cheeaun
Name: NoScript
Version: 2.6.9.19
Enabled: false
ID: {73a6fe31-595d-460b-a920-fcc0f8843232}
Name: Page Title in URL Bar
Version: 5.0.2
Enabled: false
ID: [email protected]
Name: Pushbullet
Version: 179
Enabled: false
ID: jid1-BYcQOfYfmBMd9A@jetpack
Name: Stylish
Version: 2.0.2
Enabled: false
ID: {46551EC9-40F0-4e47-8E18-8E5CF550CFB8}
Name: tabTooltip
Version: 1.1
Enabled: false
ID: [email protected]
Name: TinEye Reverse Image Search
Version: 1.1
Enabled: false
ID: [email protected]
Name: Xmarks
Version: 4.3.5
Enabled: false
ID: [email protected]
Name: µBlock
Version: 0.8.6.0
Enabled: false
ID: {2b10c1c8-a11f-4bad-fe9c-1c11e82cac42}
Graphics
Adapter Description: Intel(R) Q965/Q963 Express Chipset Family
Adapter Drivers: igdumd64 igdumdx32
Adapter RAM: Unknown
ClearType Parameters: Gamma: 2400 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 50
Device ID: 0x2992
Direct2D Enabled: Blocked for your graphics driver version.
DirectWrite Enabled: false (6.2.9200.16492)
Driver Date: 9-23-2009
Driver Version: 8.15.10.1930
GPU #2 Active: false
GPU Accelerated Windows: 0/2 Basic (OMTC) Blocked for your graphics driver version.
Subsys ID: 2808103c
Vendor ID: 0x8086
WebGL Renderer: Blocked for your graphics driver version.
windowLayerManagerRemote: true
AzureCanvasBackend: skia
AzureContentBackend: cairo
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0
Important Modified Preferences
accessibility.typeaheadfind.flashBar: 0
browser.cache.disk.capacity: 358400
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.smart_size.use_old_max: false
browser.cache.frecency_experiment: 3
browser.newtab.url: about:blank
browser.places.smartBookmarksVersion: 7
browser.search.useDBForOrder: true
browser.sessionstore.upgradeBackup.latestBuildID: 20150305021524
browser.startup.homepage: google.com
browser.startup.homepage_override.buildID: 20150305021524
browser.startup.homepage_override.mstone: 36.0.1
browser.tabs.closeWindowWithLastTab: false
browser.urlbar.default.behavior: 0
dom.max_chrome_script_run_time: 0
dom.mozApps.maxLocalId: 1011
dom.mozApps.used: true
extensions.lastAppVersion: 36.0.1
font.internaluseonly.changed: true
gfx.direct2d.disabled: true
layers.acceleration.disabled: true
media.gmp-gmpopenh264.enabled: true
media.gmp-gmpopenh264.lastUpdate: 1423277131
media.gmp-gmpopenh264.version: 1.3
media.gmp-manager.lastCheck: 1426961929
network.cookie.prefsMigrated: true
places.database.lastMaintenance: 1426961930
places.history.expiration.transient_current_max_pages: 53460
plugin.disable_full_page_plugin_for_types: application/pdf
plugin.importedState: true
plugin.state.flash: 1
plugin.state.npdeployjava: 0
plugin.state.nppdf: 0
plugin.state.npwcx: 1
print.printer_PDFCreator.print_bgcolor: false
print.printer_PDFCreator.print_bgimages: false
print.printer_PDFCreator.print_colorspace:
print.printer_PDFCreator.print_command:
print.printer_PDFCreator.print_downloadfonts: false
print.printer_PDFCreator.print_duplex: 1515870810
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_page_delay: 50
print.printer_PDFCreator.print_paper_data: 9
print.printer_PDFCreator.print_paper_height: 11.00
print.printer_PDFCreator.print_paper_name:
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_plex_name:
print.printer_PDFCreator.print_resolution: 1515870810
print.printer_PDFCreator.print_resolution_name:
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.offlineApps: true
privacy.cpd.siteSettings: true
privacy.donottrackheader.enabled: true
privacy.donottrackheader.value: 1
privacy.sanitize.migrateFx3Prefs: true
privacy.sanitize.timeSpan: 0
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1426532242
Important Locked Preferences
JavaScript
Incremental GC: true
Accessibility
Activated: false
Prevent Accessibility: 0
Library Versions
NSPR
Expected minimum version: 4.10.7
Version in use: 4.10.7
NSS
Expected minimum version: 3.17.4 Basic ECC
Version in use: 3.17.4 Basic ECC
NSSSMIME
Expected minimum version: 3.17.4 Basic ECC
Version in use: 3.17.4 Basic ECC
NSSSSL
Expected minimum version: 3.17.4 Basic ECC
Version in use: 3.17.4 Basic ECC
NSSUTIL
Expected minimum version: 3.17.4
Version in use: 3.17.4
Experimental Features
---------------------