Hi Alissonpc2,

I understand from your message that you are having difficulties listening to Windows Media Player steamings since updating Firefox. It appears that the WMP add-on may not be compatible with the newest version of Firefox.

Please refer to the following article to re-enable the add-on:

• Reative extensões que foram desativadas ao atualizar o Firefox

Please let us know if this solves your problem, or if you have any more questions.

Thanks!!

- Ralph

Hello rjbd

Unfortunatelly nothing of this page help because, as I said, WMP Extension plugin is installed but Firefox 21.0 doesn't "see it" on Complements page. It's like the plugin isn't installed. Firefox 21.0 "is blind" about it.

Please look the images below, will help me to explanate the problem/bug.

WMP Extension is installed... http://imageshack.us/a/img4/1094/screen1rwe.jpg

...but where is it? http://imageshack.us/a/img14/3657/screen2ci.jpg

So the problem keeps. Please look if I can make someone or this is officially a bug on Firefox 21.0 that MUST be solved. As I said, it's creepy look the pages that has WMP streaming and I had to copy the site to Internet Explorer for it works.

Still need help for this.

I'm sending the Integrity Report and Suport Data if could help you.

 Informações básicas sobre o aplicativo

       Nome
       Firefox

       Versão
       21.0

       User Agent
       Mozilla/5.0 (Windows NT 6.1; rv:21.0) Gecko/20100101 Firefox/21.0

       Configuração da compilação

         about:buildconfig

 Extensões

       Nome

       Versão

       Ativa

       ID

       Add-on Compatibility Reporter
       2.0.1
       true
       compatibility@addons.mozilla.org

       Flagfox
       4.2.9
       true
       {1018e4d6-728f-4b20-ad56-37578a4de76b}

       IDM CC
       7.3.45
       true
       mozilla_cc@internetdownloadmanager.com

       Personas Plus
       1.7.2.1
       true
       personas@christopher.beard

       Troubleshooter
       1.1a
       true
       troubleshooter@mozilla.org

 Preferências importantes modificadas

     Nome

     Valor

       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.startup.homepage_override.buildID
       20130511120803

       browser.startup.homepage_override.mstone
       21.0

       dom.mozApps.used
       true

       dom.w3c_touch_events.expose
       false

       extensions.lastAppVersion
       21.0

       network.cookie.prefsMigrated
       true

       network.http.max-persistent-connections-per-server
       10

       places.database.lastMaintenance
       1369043388

       places.history.expiration.transient_current_max_pages
       40015

       plugin.disable_full_page_plugin_for_types
       application/pdf

       privacy.cpd.offlineApps
       true

       privacy.cpd.siteSettings
       true

       privacy.sanitize.migrateFx3Prefs
       true

       privacy.sanitize.timeSpan
       0

       security.warn_viewing_mixed
       false

       security.warn_viewing_mixed.show_once
       false

 Gráficos

       Data do driver
       9-23-2009

       Descrição do adaptador
       Mobile Intel(R) 965 Express Chipset Family

       Direct2D ativo
       Bloqueado para a versão do seu driver gráfico.

       DirectWrite ativo
       false (6.2.9200.16492)

       Drivers do adaptador
       igdumdx32 igd10umd32

       GPU #2 ativa
       false

       ID do dispositivo
       0x2a02

       ID do fornecedor
       0x8086

       Janelas aceleradas pela GPU
       1/1 Direct3D 9

       RAM do adaptador
       Unknown

       Renderização WebGL
       Google Inc. -- ANGLE (Mobile Intel(R) 965 Express Chipset Family)

       Versão do driver
       8.15.10.1930

       AzureCanvasBackend
       skia

       AzureContentBackend
       none

       AzureFallbackCanvasBackend
       cairo

 JavaScript

       Incremental GC
       true

 Acessibilidade

       Ativado
       false

       Bloquear acessibilidade
       0

 Versões das bibliotecas

       Versão mínima esperada

       Versão em uso

       NSPR
       4.9.6
       4.9.6

       NSS
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSSMIME
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSSSL
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSUTIL
       3.14.3.0
       3.14.3.0

Hi alissonpc2,

I tested the Windows Media Player plugin on a Windows 7 machine running Firefox 21.0, and I was able to stream a Windows Media Player video normally. Can you please test the following video and tell us how how the video plays and if there are any error messages? Please click under "Windows Media" on the following link:

• http://its.virginia.edu/network/videotest/

Please, also let us know what is the link of the page you are having troubles streaming a video of.

Having said that, I was able to replicate the behavior that you describe:

• The Windows Media Player Plugin shows up on the Windows Control Panel, but not on the Firefox Plugins page.

I am unsure if this is expected behavior for this plugin or not. I say this because the installation appears to have been done outside of Firefox. I will forward this issue to someone who may be able to help and explain this behavior better than me. =)

Thanks!!

- Ralph

Launch Windows Explorer with administrator rights (right click / Run as administrator). This is important, because otherwise you do not have write access.

Navigate to C: \ Program Files \ Mozilla Firefox (note for spanish: C: \ archivos de programa \ Mozilla Firefox si es en español)

or

C: \ Program Files (x86) \ Mozilla Firefox.

Copy after right-clicking the "plugins" folder. Now open the "browser" folder and paste the plugins folder. Restart Firefox, then the plugin should work again.

works perfect for me.

source: http://www.pctipp.ch/praxishilfe/kummerkasten/internet/68239/firefox_windows_media_player_plugin_verschwunden.html

Hello Ralph. When I clicked on the Windows Media link Firefox ask to download the streaming file. Not played it on the browser.

dawnrazor45

THANK YOU VERY MUCH!!!!!! Problem solved!!!!!! I'm free of IE and now I can listen my Windows Media streamings inside Firefox 21.0! Please check the images. THANKS FOR THE HELP! And now you guys from Firefox could work on a solution for this on future updates of Firefox, for this bug doesn't happen anymore. SO HAPPY AND SO GLAD!

I had plugin problem on version 21 and found this which worked great.

[https://support.mozilla.org/en-US/kb/windows-media-or-other-plugins-stopp...]