What is your computer system and Firefox?

Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies
  Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

• Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
• Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.

Prior to my original post I had tried most tests. The only item that was not, was to turn of 'Hardware Acceleration'. I tested with it turned off, but no improvement. Same problems continue. And included in the initial post is the operating system, version of FireFox, and Adobe Flash.

Sorry, no.

Additional System Details Application

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36

So is this the limit of Mozilla/Firefox tech support?

Type about:support in the address bar and press Enter. Under the main banner, press the button; Copy Text To Clipboard.. Then in the reply box at the bottom of this page, do a right click in the box and select Paste. This will show us your system details. No Personal Information Is Collected.

Text from clipboard

Application Basics

Name: Firefox Version: 43.0.3 Build ID: 20151223140742 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0 Multiprocess Windows: 0/1 (default: false) Safe Mode: false

Crash Reports for the Last 3 Days

All Crash Reports

Extensions

Name: iSkysoft iTube Studio Version: 4.7.0 Enabled: true ID: ISAllmytube@iSkysoft.com

Graphics

Adapter Description: Intel(R) HD Graphics 5500 Adapter Description (GPU #2): NVIDIA GeForce 840M Adapter Drivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32 Adapter Drivers (GPU #2): nvd3dumx,nvwgf2umx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um,nvwgf2um Adapter RAM: Unknown Adapter RAM (GPU #2): 2048 Asynchronous Pan/Zoom: none Device ID: 0x1616 Device ID (GPU #2): 0x1341 Direct2D Enabled: true DirectWrite Enabled: true (10.0.10586.0) Driver Date: 8-4-2015 Driver Date (GPU #2): 7-13-2015 Driver Version: 10.18.15.4248 Driver Version (GPU #2): 10.18.13.5354 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 08861025 Subsys ID (GPU #2): 08861025 Supports Hardware H264 Decoding: Yes Vendor ID: 0x8086 Vendor ID (GPU #2): 0x10de WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 5500 Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d 1.1 AzureContentBackend: direct2d 1.1 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: 3 browser.download.importedFromSqlite: true browser.places.smartBookmarksVersion: 7 browser.sessionstore.upgradeBackup.latestBuildID: 20151223140742 browser.startup.homepage: http://www.drudgereport.com/ browser.startup.homepage_override.buildID: 20151223140742 browser.startup.homepage_override.mstone: 43.0.3 browser.urlbar.userMadeSearchSuggestionsChoice: true dom.apps.reset-permissions: true dom.mozApps.used: true extensions.lastAppVersion: 43.0.3 gfx.crash-guard.d3d11layers.appVersion: 43.0.3 gfx.crash-guard.d3d11layers.deviceID: 0x1616 gfx.crash-guard.d3d11layers.driverVersion: 10.18.15.4248 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.direct3d.last_used_feature_level_idx: 0 media.gmp-eme-adobe.abi: x86-msvc media.gmp-eme-adobe.lastUpdate: 1451530607 media.gmp-eme-adobe.version: 15 media.gmp-gmpopenh264.abi: x86-msvc media.gmp-gmpopenh264.lastUpdate: 1451530608 media.gmp-gmpopenh264.version: 1.5.3 media.gmp-manager.buildID: 20151223140742 media.gmp-manager.lastCheck: 1451530597 media.hardware-video-decoding.failed: false network.cookie.prefsMigrated: true network.predictor.cleaned-up: 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 privacy.sanitize.timeSpan: 0 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: 4.10.10 Version in use: 4.10.10

NSS Expected minimum version: 3.20.2 Basic ECC Version in use: 3.20.2 Basic ECC

NSSSMIME Expected minimum version: 3.20.2 Basic ECC Version in use: 3.20.2 Basic ECC

NSSSSL Expected minimum version: 3.20.2 Basic ECC Version in use: 3.20.2 Basic ECC

NSSUTIL Expected minimum version: 3.20.2 Version in use: 3.20.2

Experimental Features

Is the Shockwave Flash plugin used or the HTML5 media player?

You can check via the right-click context menu of the player area what kind of media player is used. A Flash based player shows a context menu with the Flash version.

Start Firefox in Safe Mode to check if one of the extensions (Firefox menu button/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

• Switch to the DEFAULT theme: Firefox menu button/Tools > Add-ons > Appearance
• Do NOT click the Reset button on the Safe Mode start window

• https://support.mozilla.org/kb/Safe+Mode
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

• Hold down the Shift key and left-click the Reload button
• Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
• Press "Command + Shift + R" (Mac)

What security software do you have?

There is security software like Avast and Kaspersky and BitDefender and ESET that intercept secure connections and send their own certificate or otherwise interfere with secure connection.

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) to see if that helps.

• http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
• http://www.7tutorials.com/4-ways-boot-safe-mode-windows-10

Adapter Description (GPU #2): NVIDIA GeForce 840M

Do you have nvidia's network access manager or forceware network manager software installed? Disable / remove it. https://support.mozilla.org/en-US/kb/connectivity-crashing-firefox-43-update

Here is the Belarc report for NVIDA. Do not believe any 'network' managers installed or active. Does not show up in 'Apps and Features/Programs and Features' Intel(R) HD Graphics 5500 [Display adapter] NVIDIA GeForce 840M [Display adapter] Generic PnP Monitor (17.1"vis, October 2011)

Also, I did not experience any problem with Firefox for the first 3 weeks of operating this new computer, no change to NVIDA drivers or software. It isn't just 43 version. I moved up to 43 from 42 hoping to solve the problem.

I am exploring the possibility of a corrupt User Account.