hello, could you go to the firefox menu ≡ > help ? > troubleshooting information, copy the contents of that page and paste them here into a reply on the forum? this might give us a clue what is going on...

What are you using as your homepage?

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac=Options) key, and then starting Firefox. Is the problem still there?

Application Basics

Name: Firefox Version: 45.0.1 Build ID: 20160315153207 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 10.0; rv:45.0) Gecko/20100101 Firefox/45.0 Multiprocess Windows: 0/1 (default: false) Safe Mode: false

Crash Reports for the Last 3 Days

All Crash Reports (including 1 pending crash in the given time range)

Extensions

Name: AdBlock for Facebook Version: 0.1.3 Enabled: true ID: jid1-dwtGBwQjx3SUQc@jetpack

Name: Adblock Plus Version: 2.7.2 Enabled: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: Block site Version: 1.1.8.1-signed Enabled: true ID: {dd3d7613-0246-469d-bc65-2a3cc1668adc}

Name: Firefox Hello Beta Version: 1.1.14 Enabled: true ID: loop@mozilla.org

Name: Updated Ad Blocker for Firefox 11+ Version: 0.7.7.1-signed Enabled: true ID: {4DC70064-89E2-4a55-8FC6-E8CDEAE3618C}

Graphics

Adapter Description: Intel(R) HD Graphics Adapter Drivers: igdumdx32 igd10umd32 Adapter RAM: Unknown Asynchronous Pan/Zoom: none Device ID: 0x0046 DirectWrite Enabled: false (10.0.10586.0) Driver Date: 11-26-2012 Driver Version: 8.15.10.2900 GPU #2 Active: false GPU Accelerated Windows: 0/1 Basic (OMTC) Subsys ID: 04981025 Supports Hardware H264 Decoding: No; Hardware video decoding disabled or blacklisted Vendor ID: 0x8086 WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D11 vs_4_0 ps_4_0) windowLayerManagerRemote: true AzureCanvasBackend: skia AzureContentBackend: cairo AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Important Modified Preferences

browser.cache.disk.capacity: 358400 browser.cache.disk.filesystem_reported: 1 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 1 browser.download.importedFromSqlite: true browser.places.smartBookmarksVersion: 7 browser.sessionstore.upgradeBackup.latestBuildID: 20160315153207 browser.startup.homepage_override.buildID: 20160315153207 browser.startup.homepage_override.mstone: 45.0.1 browser.tabs.warnOnClose: false browser.urlbar.autocomplete.enabled: false browser.urlbar.suggest.bookmark: false browser.urlbar.suggest.history: false browser.urlbar.suggest.openpage: false dom.apps.reset-permissions: true dom.mozApps.used: true extensions.lastAppVersion: 45.0.1 gfx.crash-guard.d3d11layers.appVersion: 45.0.1 gfx.crash-guard.d3d11layers.deviceID: 0x0046 gfx.crash-guard.d3d11layers.driverVersion: 8.15.10.2900 gfx.crash-guard.d3d11layers.feature-d2d: true gfx.crash-guard.d3d11layers.feature-d3d11: true gfx.crash-guard.glcontext.gfx.driver-init.direct3d11-angle: true gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle: true gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-d3d11: false gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-warp: false gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-try-d3d11: true gfx.crash-guard.status.d3d11layers: 2 gfx.crash-guard.status.d3d9video: 2 gfx.crash-guard.status.glcontext: 2 gfx.direct2d.disabled: true gfx.direct3d.last_used_feature_level_idx: 1 layers.acceleration.disabled: true media.gmp-eme-adobe.abi: x86-msvc-x86 media.gmp-eme-adobe.lastUpdate: 1459970440 media.gmp-eme-adobe.version: 15 media.gmp-gmpopenh264.abi: x86-msvc-x86 media.gmp-gmpopenh264.lastUpdate: 1459970442 media.gmp-gmpopenh264.version: 1.5.3 media.gmp-manager.buildID: 20160315153207 media.gmp-manager.lastCheck: 1459970412 media.hardware-video-decoding.failed: false network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.database.lastMaintenance: 1459971262 places.history.expiration.transient_current_max_pages: 46736 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.donottrackheader.enabled: true privacy.sanitize.migrateFx3Prefs: true services.sync.declinedEngines: services.sync.engine.prefs.modified: false services.sync.lastPing: 1459970697 services.sync.lastSync: Thu Apr 07 2016 19:18:17 GMT+0100 (GMT Standard Time) services.sync.numClients: 2 storage.vacuum.last.index: 0 storage.vacuum.last.places.sqlite: 1459971258 ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

Important Locked Preferences

JavaScript

Incremental GC: true

Accessibility

Activated: false Prevent Accessibility: 0

Library Versions

NSPR Expected minimum version: 4.12 Version in use: 4.12

NSS Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC

NSSSMIME Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC

NSSSSL Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC

NSSUTIL Expected minimum version: 3.21.1 Version in use: 3.21.1

Experimental Features

Some of your crash reports weren’t sent to the Mozilla Servers.

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

thank you, most of your settings look clear, though you're having three quite similar adblocking tools, which might get in each other's way. maybe it's better to rely on just one of them. also, just to be on the safe side, could you run a scan of your system with the free version of malwarebytes & adwcleaner?

bp-fe8b6512-a0cd-480b-a1cf-979382160407 4/7/2016 9:52 PM bp-d7cc2e51-ec17-47e3-b073-3b96a2160407 4/7/2016 9:52 PM bp-09eda934-60c2-48f4-8042-1e6d62160407 4/7/2016 9:52 PM bp-c6b99581-8b34-423e-8c79-116622160210 2/10/2016 1:45 AM ba82e029-bb1e-4c3e-835f-9f262013bdf2 2/10/2016 1:44 AM

bp-fe8b6512-a0cd-480b-a1cf-979382160407

Signature: hang | WaitForMultipleObjectsEx | RealMsgWaitForMultipleObjectsEx | MsgWaitForMultipleObjects | F_1152915508

Process Type plugin Shockwave Flash Version: 20.0.0.306

Attention Sumo's there are 20 related bug reports ++++++++++++++++++++++++++++++++++++++++++ bp-d7cc2e51-ec17-47e3-b073-3b96a2160407

Signature: shutdownhang | js::TraceLoggerEvent::TraceLoggerEvent +++++++++++++++++++++++++++++++++++++++++++ bp-09eda934-60c2-48f4-8042-1e6d62160407

Signature: F1398665248

Process Type plugin Shockwave Flash Version: 20.0.0.306

Attention Sumo's there are 25 related bug reports

https://support.mozilla.org/en-US/kb/update-firefox-latest-version 45.*

Update your Flash Player Version: 21.0.0.213 Note: Windows users should download the active_x for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the active_x.

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Optional offer: McAfee Security

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Optional offer: McAfee Security

See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

thanks for the effort guys - Ive tried all that already - resigned to trying a different browser