Successfully reverted back to 33.1.1 - Problem solved & videos playing again, but for how long... There is obviously an issue with 34 and video playback. If anyone can find a viable solution, please, let me know.

Do you have the Flashblock add-on installed? It needs to be fixed by the developer of that add-on to work in Firefox 34 plus versions. Or you can use a more 'modern' add-on like this one. https://addons.mozilla.org/en-US/firefox/addon/click-to-play-per-element/

From; https://addons.mozilla.org/en-US/firefox/user/tomjerry/

I patched flashblock 1.5.17 to make it work again Try this http://www.datafilehost.com/get.php?file=9eb21f61

This worked for me.

Thank you the-edmeister and FredMcD for your efforts.

FredMcD, my antivirus didn't like the link you gave, so I didn't go there, just a heads-up. But I got myself a new computer, was planning to anyway.

This new computer had it's first Firefox update today, and guess fucking what... Drumroll..... No more video playback except on Youtube.

FAN - FUCKING - TASTIC !!

You guys know Murphy's law? I just recently donated $15 to Mozilla's fundraiser. I'd been using it for years without a hitch, so I thought, why not. I think I'm going to sue for my money back, I mean, what are the chances of the same stinking goddamn fucking issue reappearing on a brand new state of the fucking art computer???!!? HUH?! (and no, it's not Adblock, I quadruple checked.)

If it happened to me twice on different computers, it has to be a known issue, and the only conclusion is that Mozilla can't be bothered to look for a solution or warn it's users.

I'm not a geek and I'm not a computer wiz, and spending 2 fucking stinking goddamn hours trying to find out what is wrong and what might 'maybe' work but then doesn't makes me homicidal.

Mozilla does shite that messes up my shite? Mozilla fix it or lose a user. Simple.

So I'm gonna hop over to Chrome and see what gives. I'm pretty sure that any support over there will have all the same beautifully advertised non-existent features Mozilla exhibits, and then there's the NSA's covert data-mining agreement with Google, but maybe the video's will work.

Wouldn't that be great !!???

FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUCK !

Ouch, now that hurts.  :-)

On the new computer; 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.

Hi Fred, didn't expect a reply after my frustrated cranial belch, but here you go... :

Application Basics

Name: Firefox Version: 36.0 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 Multiprocess Windows: 0/1

Crash Reports for the Last 3 Days

All Crash Reports

Extensions

Name: Adblock Plus Version: 2.6.7 Enabled: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: DownloadHelper Version: 4.9.24 Enabled: true ID: {b9db16a4-6edc-47ec-a1f4-b86292ed211d}

Name: MouseZoom Version: 0.4.9 Enabled: true ID: {28FAD68E-4001-48d5-B994-68069F7CFB1D}

Name: YouTube Center Version: 2.1.7 Enabled: true ID: jid1-cwbvBTE216jjpg@jetpack

Graphics

Adapter Description: NVIDIA GeForce 210 Adapter Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um Adapter RAM: 1024 Device ID: 0x0a65 Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.16492) Driver Date: 7-2-2014 Driver Version: 9.18.13.4052 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 00000000 Vendor ID: 0x10de WebGL Renderer: Google Inc. -- ANGLE (NVIDIA GeForce 210 Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Important Modified Preferences

accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.capacity: 358400 browser.cache.disk.smart_size_cached_value: 1048576 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 4 browser.display.background_color: #C0C0C0 browser.display.use_system_colors: true browser.places.smartBookmarksVersion: 7 browser.sessionstore.upgradeBackup.latestBuildID: 20150222232811 browser.startup.homepage_override.buildID: 20150222232811 browser.startup.homepage_override.mstone: 36.0 dom.mozApps.used: true extensions.lastAppVersion: 36.0 font.internaluseonly.changed: true gfx.direct3d.last_used_feature_level_idx: 0 gfx.direct3d.prefer_10_1: true media.gmp-gmpopenh264.lastUpdate: 1423176712 media.gmp-gmpopenh264.version: 1.3 media.gmp-manager.lastCheck: 1425076572 network.cookie.prefsMigrated: true places.database.lastMaintenance: 1425083780 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.donottrackheader.enabled: true privacy.sanitize.migrateFx3Prefs: true security.warn_viewing_mixed: false storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1424559478

user.js Preferences

Your profile folder contains a user.js file, which includes preferences that were not created by Firefox.

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

Your profile folder contains a user.js file, which includes preferences that were not created by Firefox.

https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

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?

Apart from video's still not playing, no issues.

Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

• https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Solved,... for now. Thanks guys.