Firefox will not play flash videos

Firefox 3.6.12 will not play flash videos. I see many people have this problem so let me list everything that I tried or thought of:
1. Uninstalled and reinstalled Flash and Firefox
2. Flash works on IE- and i do have both versions of flash installed for IE and Firefo
3.Adblock plugin is not installed
4.In Safemode, videos still do not play
5. Other issues with firefox started when I installed Webroot Desktop Firewall so I uninstalled it and am using windows firewall

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No matter how many uninstalls and reinstalls Firefox 4 will not play flash videos w the latest flash plugin installed. What do I do to get flash videos to play like everyone esle can?

Trying to solve my non-playing flash videos wherever I surf in Firefox 401 w Flash plugin 10.2.159.1, such as CNN or anywhere really while surfing. Even at the Adobe web site I cannot play demo videos and I own CS4 Suite. I can play any YouTube video I select.
I surf in Firefox 401 w Flash plugin 10.2.159.1. Don't tell me to UNINSTALL then REINSTALL the flash player as I have done that too many times.
I logged out and logged into my clean account where I install nothing. No joy.
What the heck is the problem? No one else seems to have this problem as I am told many play CNN videos fine.

Hi arpriltime,
Have you looked at our [https://support.mozilla.org/en-US/kb/firefox-crashes-or-flash-plugin-crashes Flash plugin troubleshooting section]? There is a lot of useful information in there that should help you get to the bottom of your issue.
Hopefully this helps!

Firefox will not play .ogv video files when loaded from a server. Does anyone have any answers that will fix this?

I've read the suggestions for fixing this, and none of them work. I've updated my .htaccess to match MIME types for .ogv, I've uploaded the files as both Binary and ASCII, neither method works. The .ogv file plays fine when you load it from a local file, but it will not play when viewed from a remote server. I've confirmed with my hosting company that the .htaccess and all other issues for HTML5 are up-to-date. Safari and Chrome play the HTML5 videos just fine, but Firefox will not. Does anyone have any concrete answers as to what the problem is. I'm also serving up the video files as .webm and .mp4, but neither of these formats works in Firefox either.

That can happen if the server isn't configured properly to send the files with a by Firefox supported MIME type.
*https://developer.mozilla.org/en/docs/Properly_Configuring_Server_MIME_Types
Did you check via the Web Console which headers Firefox receives when requesting the .ogv file?
If that is OK then it is possible that the file is using an unsupported coding method.
* https://developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements

Many websites will not play flash video

Really hoping for help with this.
Most sites won't play flash video (can't remember all of them, but they include BBC, CBC, & major online news & business sites). I don't think it's a site problem.
[YouTube works].
Safari version is current. "Block pop-up windows" is off. Gimme Blocker is on. There are no extensions installed.
If there's other info to be provided, please LMK.
Thanks!

Hi,
Follow the instructions for troubleshooting Flash here.
You may need to delete Flash cookies, instructions for that here.
Carolyn

Firefox will not play training videos from BMW university

I need to use BMW university (ICP) to view training videos. I use Linux (Linux mint 9) and Firefox. I can view them using the computers at work which of course are windows and have internet explorer. I have emailed BMW about this but they seem to be unwilling to change anything. Anyway. I use Adobe flash and Sun Java, the latest versions and have all the correct plugins. Firefox will work on every other site. I tried using Opera but I got an error message saying my Browser doesn't use Dynamic html, so I quit Opera. I love using Firefox and would love to have it work on this site. I can't give you the URL for the site as it is protected and the property of BMW. I don't know what to try to get it working, maybe it will never work, maybe there is proprietary windows stuff built into the site and it just wont work with Linux or Firefox.

What kind of content is that?<br />
Are that Flash videos?
You have the Flash player, so if it is Flash then it should work.
Which player do you see if you right-click on it in IE ?
See also:
*[[Video or audio does not play]]
* http://kb.mozillazine.org/Video_or_audio_does_not_play

Firefox will not play WebM video encoded by Sorenson Squeeze Pro 8

A short video encoded to WebM using Sorenson Squeeze Pro 8.0.48. Chrome and Opera play the HTML5 webm video with a problem. Firefox 10.0.1 and 11 just display a dimmed window with and "X" in the middle and will not load or play anything. Sorenson is a commercially proven product as confirmed by Chrome and Opera, so what gives with Firefox?

We have just completed our webm testing with Telestream's Episode Pro 6.2.1.1 and not surprisingly, the same results as Sorenson Squeeze Pro 8.
Chrome, Opera and Safari browsers play HTML5 webm video as expected.
Firefox rigidly enforces the server .htaccess configuration to specifically state Mime Types, then it will/does work.

Safari does not recognize flash plug-in and will not play flash video

I use Safari as my go-to browser for web sites that would otherwise require me to turn off my several ad-block/flash-block plugIns for Firefox. I do have it set to ask for permission ('Trust this site?') for every time I use flash on a new site (since I reset Safari regularly and clear all cookies every time I close it this means every time, every site, it asks). New problem started sometime in the past week: Safari is returning a 'download flash' icon on some videos on some web sites--but on others it correctly goes through the 'trust this site to use flash?' routine and when I click 'trust now' it plays the video normally. Trying to figure out if this is a Safari problem, flash problem, or web site problem. How can Safari both recognize that flash is being asked for (that's why it shows me the 'download flash now' icon, right?) and not recognize that it has flash installed?
Safari Version 7.0.4 (9537.76.4)

If you're sure you've installed the latest version of Flash, take each of the following steps that you haven't already tried. After each step, relaunch Safari and test. For a "missing plug-in" error, start with Step 8. Back up all data before making any changes.
Step 1
You might have to log out or restart the computer before a Flash update takes effect.
Step 2
From the Safari menu bar, select
Safari ▹ Preferences... ▹ Privacy ▹ Remove All Website Data...
and confirm. Close the window. Then select
 ▹ System Preferences… ▹ Flash Player ▹ Advanced
and click Delete All. Close the preference pane.
Step 3
If you're only having trouble with YouTube videos, log in to YouTube and load this page. You may see a link with the text "Leave the HTML5 Trial." If so, click that link.
Step 4
If you get a warning of a "blocked" or "outdated" plug-in, then from the menu bar select
 ▹ System Preferences… ▹ Flash Player ▹ Advanced
and click Check Now. Quit and relaunch the browser.
If the warning persists, triple-click anywhere in the line below on this page to select it:
/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources
Right-click or control-click the highlighted text and select
Services ▹ Open
from the contextual menu.* A folder should open. Inside it, there should be a file named "XProtect.meta.plist". If that file is missing and you know why it's missing, restore it from a backup or copy it from another Mac running the same version of OS X. Otherwise, reinstall OS X.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.
Step 5
In the Safari preferences window, select the Advanced tab and uncheck the box marked
Stop plug-ins to save power
Step 6
Open this folder as in Step 4:
/Library/Internet Plug-Ins
Delete the following item, or anything with a similar name, if present:
Flash Player (failing).plugin
You may be prompted for your login password.
Step 7
Re-download and reinstall Flash. Download it from the domain "get.adobe.com". Don't click a link from any other website, including this one, because you can't trust links. They may be an attempt to trick you into installing malware masquerading as Flash. Type the address into the browser window. Never download a Flash update from anywhere else.
Step 8
If you get a "missing plug-in" error, select
Safari ▹ Preferences... ▹ Security
from the Safari menu bar and check the box marked
Allow (or Enable) plug-ins
Then click the button marked
Manage Website Settings...
if present and make sure that the website is not blocked for Flash.
Step 9
Select
Safari ▹ Preferences... ▹ Extensions
from the Safari menu bar. If any extensions are installed, disable them.

Namoroka will not play Flash videos

Anytime I try to view a site with Flash video, such as YouTube, Namoroka always says the Adobe plug-in needs updated. Even when I download and reinstall Flash, the site shows the same error message
== URL of affected sites ==
http://www.youtube.com/watch?v=VcYdv6pKTqA
== User Agent ==
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100405 Namoroka/3.6.3

The problem with the flash player not installing on demand is because by default they are offering you the 32-bit version. You have to go to the Adobe site and download and install the 64-bit version.
http://labs.adobe.com/downloads/flashplayer10_square.html
I still haven't worked out how I can play videos in face book.

W520 will not play flash videos unless buffered in all browsers (youtube works...)

I just bought my W520 referbished and I cannot watch flash videos unless they are fully buffered. Several places suggests it has something to do with F-secure which does not appeared to be installed. It also only effects certian players - not all. I tried it on a verity of websites and have found that JWPlayer is one of them. Youtube works fine. I have tried reinstalling Flash - I have updated all of my browsers (IE, Firefox [default], and Chrome). Could this be a hardware problem? Something to do with Optimus?
Solved!
Go to Solution.

ajipaul,
Can you share the links for both of the videos which work and does not work fine?
We tried our W520 streamming 1080p video from youtube and they work fine. Not sure if we got your issues right.
- Cleo
WW Social Media
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Firefox will not play Yahoo videos.I can play them on Safe version of Firefox. What is wrong?

I cannot play Yahoo videos on Firefox.
I can play Yahoo videos on Safe version of Firefox.
I can play videos on other sites (CNN,Fox,....etc.).
I recently updated to the latest version of Adobe Flash.

You were on the right track. However, It was the No-Script Extension that was causing the problem. I went to the No-Script Options then General tab and checked the box "Allow top-level sites by default".
I had noticed that as I kept trying to play the videos, a No-Script message popped up about something (don't remember exactly what it said).
The Yahoo videos now play.

Why my Ipad2 will not play rented video to a projector via vga adapter connection

Hi, i want to know why my ipad will not play rented video to a projector using the apple vga adapter connector. This is just basic mirroring and there should be no problem isn't it? Please help.
Thank you

Technically, yes, it should be easy. However with rented videos you may be running into DRM (DIgital rights management) where you may not be allowed to play that video anywhere but on the iPad. The video could have a bit of programming in it that literally tells the HDMI or VGA output not to work.
One way to test the connection, with your ipad's camera, shoot a short video and try to mirror that. If it mirrors and the movie doesn't then it's likely that you're simply not allowed to mirror it. If it doesn't play then there may be something wrong hardware or setting wise.

HT3775 My Macbook Air (still with Lion) will not play .avi video files

My Macbook Air (still with Lion) will not play .avi video files (brought over from an older PC where they play with another viewer). This site implies Quicktime Player should be able to do so. Is there a codec or something else I'm supposed to download?

I had found this through other threads, but it is what worked, even allowed my AVI files to be played in PowerPoint. Changing to 32-bit encryption did not work, BTW.

Firefox will not allow Flash player to work. How do I enable Flash to work in Firefox? Thank you.

Question
Firefox will not allow Flash player to work. Every site that uses Flash player gives me a message saying that I need to update to the latest version of Flash player, but I have done so, and I keep getting the same message. How do I enable Flash to work in Firefox? Thank you.

You can hold down the Shift key and double click the Firefox desktop icon to start Firefox in [[Safe mode]].

My macbook pro will not play a video without pausing every 11 seconds. PLEASE help me figure out what is wrong. very frustrating

my macbook pro will not play a video without pausing every 11 seconds. PLEASE help me figure out what is wrong. very frustrating. I have already tried restarting

buckmacie,
has the video been completely downloaded onto your MacBook Pro when you start to play it? Or are you playing it while it downloads, AKA streaming it?

FCP X will not play any video.

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I am using an Imac 10 with Dual core 3.06ghz and 16gb ram on 10.6.8

Spoke to Apple Rep today: Everything works in a new user. Duh I should have thought of that. He at first was telling me that 256 vram was barely enough to run FCPX and my dual monitors was part of the problem with too many things on the bus 1 usb drive 2 usb printers 1 usb apc, Firewire 400 DVD and Lacie drive, and a Drobo He didn't like the Drobos. Unhooked everything... Didn't help.
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Firefox will not play flash videos

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