Why Firefox doesn't load flash?

I've had this problem in the past and I had to move to Opera for a while but got solved I don't know how. Today when I turned on my PC today the flash updater appeared like always and I updated it. Then I go to youtube and I can't see the video. It was fine yesterday. Then I realised no flash content was loading. It just shows an empty space where the flash thing should be. I tried uninstalling flash and firefox and installing a previous flash and nothing works. What can I do? Oh, I use firefox 4.

Well, yeah... right after I found the problem I tried uninstalling/installing again both firefox 4 and the flash player without any success. Then I returned to firefox 3,5 to write here then I noticed the flash was working again. That's the computer I use at my office. At home I still have a perfectly working firefox 4 because I didn't do the update that made it fail. Both computers run Windows XP but I don't remember if the one at the office has SP3... I know the one at home does have it. The one at my office tells me now to get firefox 4 but I don't want to because I won't be able to play flash.
Oh, one last thing... recently I can't put attachments on my hotmail e-mails and it only happens with firefox. On IE and Opera it works fine.

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* http://kb.mozillazine.org/Testing_pre-release_versions
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Bug? firefox doesn't load clips!

Hi everybody...
I have this terrible problem...
I'm developing a site entirely made with flash (customer's
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browsers, but with firefox... it is like it doesn't even send the
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the site i'm making is:
http://colegiosalesiano.org.mx
, perhaps it's a problem of my ISP, i don't know... and you all
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listeners=new Object();
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listeners.onLoadProgress=function(){
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So many buttons call the "addSection()", like...
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_root.addSection("dir/sample.swf");
Now, the code I pasted is not the used on the flash, but it
works like that... on the Flash it doesn't
presents any syntax error, so, it's not like that the posible
error, but a logical planning, I guess... or
simply the plugin for firefox doesn't works properly, or I'm
missing something... dont know.

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Firefox doesn't handle Flash

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Matulga,
> This is the official Flash forum, right?
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Dev blog,
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*https://support.mozilla.com/kb/Firefox+never+finishes+loading+certain+websites
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Hello,
I installed Firefox on a Windows 8 laptop recently but I cannot access any website with it, it either gives me the error message "server not found" or simply doesn't do anything.
I tried to uninstall and reinstall it first, then to follow the various troubleshooting suggestions from the support but nothing worked. I am not using a proxy so I set Firefox's connection settings accordingly. I deactivated both antivirus and firewall, I also added Firefox to the list of safe applications in my firewall. I changed the config for IPv6 and DNS Prefetching as instructed. I have not been able to load any page at all since I installed Firefox so I assume that my history, cookies, etc are clean but I did reset Firefox to factory settings anyway.
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The information below comes from the troubleshooting information menu of my Firefox:
Application Basics
Name: Firefox
Version: 33.1
User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0
Multiprocess Windows: 0/1
Crash Reports for the Last 3 Days
All Crash Reports
Extensions
Graphics
Adapter Description: Intel(R) HD Graphics
Adapter Drivers: igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32
Adapter RAM: Unknown
Device ID: 0x0106
Direct2D Enabled: true
DirectWrite Enabled: true (6.3.9600.17111)
Driver Date: 1-29-2014
Driver Version: 9.17.10.3347
GPU #2 Active: false
GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC)
Vendor ID: 0x8086
WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote: true
AzureCanvasBackend: direct2d
AzureContentBackend: direct2d
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0
Important Modified Preferences
browser.cache.disk.capacity: 358400
browser.cache.disk.smart_size.first_run: false
browser.cache.frecency_experiment: 4
browser.places.smartBookmarksVersion: 7
browser.sessionstore.upgradeBackup.latestBuildID: 20141106120505
browser.startup.homepage_override.buildID: 20141106120505
browser.startup.homepage_override.mstone: 33.1
dom.mozApps.used: true
extensions.lastAppVersion: 33.1
gfx.direct3d.last_used_feature_level_idx: 0
network.cookie.prefsMigrated: true
network.dns.disableIPv6: true
network.dns.disablePrefetch: true
places.history.expiration.transient_current_max_pages: 104324
plugin.disable_full_page_plugin_for_types: application/pdf
privacy.sanitize.migrateFx3Prefs: true
Important Locked Preferences
JavaScript
Incremental GC: true
Accessibility
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Prevent Accessibility: 0
Library Versions
NSPR
Expected minimum version: 4.10.7
Version in use: 4.10.7
NSS
Expected minimum version: 3.17.2 Basic ECC
Version in use: 3.17.2 Basic ECC
NSSSMIME
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---------------------

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<hr>
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[[Image:FirefoxSafeMode|width=520]]
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[[Image:Safe Mode Fx 15 - Win]]
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''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
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Hi
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The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
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Did this fix your problems? Please report back to us!

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Why Firefox doesn't load flash?

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