No sound in Firefox safe mode

Question

Problem started when no sound would play in YouTube.
Updated Java, flash, adobe, shockwave, plugins. Nada.
Checked sound mixer on laptop, Firefox not muted.
Ran firefox in safe mode. Still no sound.
Yet no issues, sounds play in IE and other browers.
HEEEEELP!!!!!!!

Answer 1

<pre><nowiki>Application Basics
Name: Firefox
Version: 24.0
User Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Firefox/24.0
Extensions
Name: Adblock Plus
Version: 2.3.2
Enabled: true
ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
Name: QuickJava
Version: 2.0.2
Enabled: true
ID: {E6C1199F-E687-42da-8C24-E7770CC3AE66}
Name: Troubleshooter
Version: 1.1a
Enabled: true
ID: [email protected]
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.disk.smart_size_cached_value: 358400
browser.places.smartBookmarksVersion: 4
browser.privatebrowsing.autostart: true
browser.startup.homepage: http://hsrd.yahoo.com/_ylt=AoRzhXdiXjyp34rQFpaEoFqbvZx4/RV=1/RE=1381443844/RH=aHNyZC55YWhvby5jb20-/RO=2/RU=aHR0cDovL3d3d
browser.startup.homepage_override.buildID: 20130910160258
browser.startup.homepage_override.mstone: 24.0
browser.tabs.warnOnClose: false
browser.urlbar.default.behavior: 2
dom.mozApps.used: true
dom.w3c_touch_events.expose: false
extensions.lastAppVersion: 24.0
font.internaluseonly.changed: true
network.cookie.prefsMigrated: true
places.database.lastMaintenance: 1381010206
places.history.expiration.transient_current_max_pages: 26585
plugin.disable_full_page_plugin_for_types: application/pdf
plugin.importedState: true
privacy.donottrackheader.enabled: true
privacy.popups.showBrowserMessage: false
privacy.sanitize.migrateFx3Prefs: true
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1380684369
Graphics
Adapter Description: Intel(R) Graphics Media Accelerator 3150
Adapter Drivers: igdumdx32
Adapter RAM: Unknown
Device ID: 0xa011
Direct2D Enabled: Blocked for your graphics driver version.
DirectWrite Enabled: false (6.2.9200.16571)
Driver Date: 10-24-2010
Driver Version: 8.14.10.2230
GPU #2 Active: false
GPU Accelerated Windows: 0/1 Basic
Vendor ID: 0x8086
WebGL Renderer: Google Inc. -- ANGLE (Intel(R) Graphics Media Accelerator 3150 Direct3D9Ex vs_0_0 ps_2_0)
windowLayerManagerRemote: false
AzureCanvasBackend: skia
AzureContentBackend: none
AzureFallbackCanvasBackend: cairo
JavaScript
Incremental GC: true
Accessibility
Activated: false
Prevent Accessibility: 0
Library Versions
NSPR
Expected minimum version: 4.10
Version in use: 4.10
NSS
Expected minimum version: 3.15.1 Basic ECC
Version in use: 3.15.1 Basic ECC
NSSSMIME
Expected minimum version: 3.15.1 Basic ECC
Version in use: 3.15.1 Basic ECC
NSSSSL
Expected minimum version: 3.15.1 Basic ECC
Version in use: 3.15.1 Basic ECC
NSSUTIL
Expected minimum version: 3.15.1
Version in use: 3.15.1</nowiki></pre>