Flash plugin will not install since upgrading Firefox

Since upgrading to the latest version of Firefox, my Flash plug-in no longer works and after repeated attempts to download and install (both the manual Flash installer, and by visiting pages like Youtube which prompt installation) nothing is working. It's a frustrating loop that gets me nowhere and I've spent hours now uninstalling Flash, uninstalling Firefox, reading through forums etc. and I am getting no help aside from some suggestions to just give up and use Chrome, which is working with Flash just as well as it ever did. I can't understand why it seems like many people are facing this issue, yet there is no apparent fix to be found.

1.Download the Flash setup file from here: 
[http://fpdownload.adobe.com/get/flashplayer/current/install_flash_player.exe Adobe Flash - Plugin version]. 
Save it to your Desktop. 
2. Close Firefox using File > Exit 
then check the Task Manager > Processes tab to make sure '''firefox.exe''' is closed, 
{XP: Ctrl+Alt+Del, Vista: Shift+Ctrl+ESC = Processes tab}
3. Then run the Flash setup file from your Desktop.
* On Vista and Windows 7 you may need to run the plugin installer as Administrator by starting the installer via the right-click context menu if you do not get an UAC prompt to ask for permission to continue (i.e nothing seems to happen). 
See this: 
[http://vistasupport.mvps.org/run_as_administrator.htm]

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Flash plugin will not install even after installing the latest version Flash

When I go to a site that contains Flash content, it says "A plugin is needed to display this content" and there is a link to install the plugin. Additionally, there is a message at the top of the page that says "Additional plugins are required to display all the media on this page" with an option to "Install Missing Plugins." I click the link to install the missing plugin, and a dialog box pops up that says "The following plugins are available:" and lists "Adobe Flash Player 11.0.1.152" with a check box next to it. The box is checked, and I click "Next" to install. It goes through the motions, and then tells me that "No plugins were installed." There is a link to manually install the plugin, which takes me to Adobe's Flash download page. I unchecked the box to pair McAfee Security with the download, and downloaded the latest version of Flash (to be honest, I've actually downloaded this exact same version about 10 times today). The dialog box pops up, I save the file, and once it has downloaded, I open the containing folder (my downloads folder). I then close all programs (including Firefox) except for the Windows Explorer folder that I'm going to run the installer from. I double-click on the Flash installer to run the installation. The installation process completes, the installer tells me that the download is successful, and my browser opens back up with an "Installation Successful" message from the Adobe website. Yay! My installation is successful... Orrrrrr not. Navigating back to the page with the Flash media - still have a message saying I need the plugin. Attempt to download plugin again...no dice.
THEN, I go to "Manage my add-ons" thinking maybe I need to enable the plugin. There is no Flash (or Shockwave) plugin listed on any of the menus - it's like it doesn't exist.
I downloaded the latest version of Java because I read somewhere that Flash requires Java to work; I installed the "Add-On Compatibility Reporter" so I could force Java to be enabled. It made no difference whatsoever, as best I can tell.
I also went to Adobe's page where you can see what version of Flash you're running (http://www.adobe.com/software/flash/about/) and it doesn't even show that I have Flash installed. In Internet Explorer, it does show that I have Flash installed, but it's the previous version (but that is likely due to the fact that I downloaded Flash from Mozilla, not IE, and they use different modes in each browser - so an update that you download from one browser does not necessarily apply to the other browser).
So in summary: I do not know what on earth is wrong here, but I am about as frustrated as I have ever been in my life. I don't know why the Adobe Flash installation is saying it is successful (is it lying to me??), but there is no plugin showing up in my Manage Add-Ons menu, and I have googled every possible combination of the content in this post and have not found a solution that works yet.

NOTE: Just discovered that Adobe is making a bigger mess than any previously.
They now have a 32-bit uninstaller for Flash '''''AND''''' a separate 64-bit uninstaller for Flash. You will need the 64-bit uninstaller for what you had installed above.
*32-bit uninstaller: http://download.macromedia.com/pub/flashplayer/current/uninstall_flash_player_32bit.exe
*64-bit uninstaller: download.macromedia.com/pub/flashplayer/current/uninstall_flash_player_64bit.exe

Flash Player will not install thinks it is already installed

Win 7 64bit
I can not open a PDF in the latest reader. It tells me flash needs to be installed. I go to the adobe site and flash player will not install stating it is already installed. The active x widget says not player is installed. It is not listed in managed add ons and is not listed in installed programs.
How can I install the program?

Some PDFs (with Rich Media Content) require the Flash Player plugin (NPAPI) to be installed.
I do not quite understand what you have installed, and what not. I recommend that you uninstall Flash Player completely using the uninstaller from http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html
then download and run both installers from
Flash Player for Internet Exporer - ActiveX
Flash Player for Firefox - NPAPI

Flash player will not install blank installer, full download? tool remove remnants of flash?

Windows 7 64bit, Firefox,Explorer, Chrome
For the longest time flash player will not install (updates for upgrades).
If I go to the main page I can download the 1mb file then open it up and the installer box opens but never does anything and is just black except the top bar. I can't even close it out. I have to "end task" it. I has been going on for a year or so. I usually have to find a link to the full installer version but can't find it anymore.
Is there a tool to remove all remnants of Adobe flash player?
Link to full installer version of player?
I tried uninstalling all versions but still the same problem
Thanks

The installer works for the vast majority of people. We serve up something like 1.2 billion installs every months, so a failure rate of even 0.0001 is > 100,000 people. We're not seeing that kind of traffic about this issue.
As the installer isn't dependent on Flash Player, and it doesn't leave anything around beyond a log file, it's unlikely that blowing Flash Player completely away would resolve anything, and it sounds like your efforts bear that out. There's something underneath us that's not working right. With Mac, it's usually corrupted NVRAM settings, but I'm not sure what it is on Windows. My guess is that it's related to the graphics subsystem, but it's not something that I've seen happen under lab conditions, and we'd need to debug it to get a definitive answer.
So, I have a couple suggestions in order of least to most effort:
Switch to Google Chrome.
Flash Player is a built-in component, so there's nothing separate to download or maintain. Updates happen automatically as part of the standard Chrome update process, so you never have to touch another Adobe installer if you don't want to.
Scan your hard disk for errors, run the Windows system file checker, and make sure you have the latest graphics drivers for your system
Check your hard disk for errors in Windows 7
Use the System File Checker tool to repair missing or corrupted system files
Back up all of your stuff (ideally to both a disk and an online backup service for redundancy), wipe the machine and do a fresh install of Windows

Flash player will not install because it is not supported on a 64 bit browser?

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Flash Player will not install on my 64 bit system with Vista also. It wants a 32 bit browser. I don't
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Premiere Pro CC not will not open since upgraded to Yosemite on Mac early 2008?

Premiere Pro CC not will not open since upgraded to Yosemite on Mac early 2008?@

Have you informed Apple of your problem?
Yosemite sometimes has problems, often related to "default" permissions needing to be changed
-one person's solution https://forums.adobe.com/thread/1689788
-http://blogs.adobe.com/creativecloud/creative-cloud-and-yosemite/
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Flash player will not install and shockwave is enabled, what do I do?

Flash player will not install and shockwave is enabled what do I do.

You start by posting your operating system and browser here in a reply.
That way we know where to begin.

Adobe Flash Player will not run since installing Firefox 25.0 upgrade

Windows 7 Home Premium X64.
My question says it all. Within Firefox's own system it says the flash player is update and enabled. Any place I go today and want to play something the page posts "Get Adobe Flash Player". I upgraded to Firefox 25.0 just before I retired for the night. Today Flash Player will not work.
Within Tools>Options>Content the option to turn java off and on is no longer there. I believe you folks have CREATED A BIG BUG!!!!!

Your statement: "I missed that Firefox 25 turned on "click to play" as the default behavior for plugins. I assume you prefer to have Flash run automatically if you've approved the site in NoScript."
I didn't read anything anywhere, nor was I aware of the fact that Firefox may have changed "my" plugin settings, or broken them. How many users do you think there might be that have NoScript set this way for one or more sites.
I'm just saying it might have been nice to have been forewarned about this - obviously something that was KNOWN that the update was going to do!!!!!!!!!!!!!!!

Updater will not install updates from Firefox

Windows XP, click on Help, About Firefox, Check for updates. They download. Then I click on Apply update. A window appears saying "updater.exe has encountered a problem and needs to close." Then I may choose whether to send the error report.
There has been no update. It will not install.
Why does this happen? The only way I can get updates from Firefox is to go to Mozilla.com and download.
I tried the troubleshooting tips in Firefox Help and nothing worked.

I should have explained that this has been going on for a long time. When I first installed Firefox several years ago their updates installed fine.
Then they no longer would install, starting in July 2007 when they downloaded Firefox 2.0.0.4. After they installed that, Firefox would not even open, and I got an error message. I had to uninstall and reinstall.
I figured out over time that I would have to go to their website and download the updates myself, each time they announced that an update needed to be installed. It would then install fine. And Firefox would open as it should. This has been the case for a long time.
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I thought this might be some problem others users have had and would know how to fix it.
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Flash Player will not install - OSX 10.9.5 w/ Firefox 34.0.5

I know this question has been asked before, but since no one seems to have an answer for it I have no choice but to ask again.
I was having trouble posting scores on a gaming website. The game ran fine, and I could log in successfully, but my scores never showed on the player list. The help section of the site suggested uninstalling / reinstalling Flash Player. I was having trouble with Flash elsewhere so I thought I'd give it a try. The uninstall was successful but now Flash will not reinstall. Now instead of a malfunctioning Flash Player I have no Flash Player at all.
The install process goes as it should - the installer uploads to my desktop, I open it, I get the "Adobe Flash Player Installer" window, I double-click in the icon, I'm asked if I'm "sure I want to open it," I click "open," I enter my administrator password, then comes the problem. The next pop-up window has a black background and for about 1/2 second you can see the words "Retrieving Install" and a loading progress bar, then the words disappear and you're left looking at the blank black box. That's it.
I have Ghostery, Lightbeam, and HTTPS Everywhere add-ons on Firefox. I turned Ghostery off through this process.
Thanks in advance.

Well, good news. I solved it. And it's beyond bizarre that no one has suggested this.
Nested deep, deep, in the the help section is this:
Still having problems?
If you are still having trouble installing Adobe Flash Player, try downloading the installer directly from the following sites:
Flash Player for Safari and Firefox - NPAPI
Flash Player for Opera and Chromium-based browsers - PPAPI
Apparently Adobe doesn't have a copy of its own software that works? Ridiculous but true. You actually have to download it from your browser's website.
Adobe, you all seriously need to get your act together.

Latest Flash player will not install on Firefox

No problem installing with IE. Just on Firefox I need to
install manually (solution with manually installing it in ..plugins
does not work). Message when downloading and installing: disk space
not enough...which is wrong. I suspect it tries to install on C:/
which is just for a card reader. what can i do..Anyone any
idea?

Seems as if we stumbled on a common error with Adobe Flash.
I am also running Mozilla Firefox and get the same error,
"You do not have enough disk space to complete the
installation. Pleas free 5000kb and try again"
So I check my HD to verify available space which is 29.9GB
available. I then check the installation path which is
I:\WINDOWS\system32\Macromed\Flash (c:\ is a card reader). I
checked the path folder only to find a single notepad text file 3kb
in size.
Here is a copy of the last output from the text file entered
during installation:
File: overwriteflag=1, allowskipfilesflag=0,
name="I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\System.dll"
File: skipped:
"I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\System.dll"
(overwriteflag=1)
MessageBox: 12582960,"You do not have sufficient disk space
to complete this installation.
Please free 5000 KB and try again."
Call: 1633
File: overwriteflag=1, allowskipfilesflag=2,
name="I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\NSISArray.dll"
File: skipped:
"I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\NSISArray.dll"
(overwriteflag=1)
Delete:
DeleteFile("I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\browser_listing.ini")
Delete:
DeleteFile("I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\InstallOptions.dll")
Delete:
DeleteFile("I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\NSISArray.dll")
Delete:
DeleteFile("I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\nsProcess.dll")
Delete:
DeleteFile("I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\System.dll")
Delete:
DeleteFile("I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\UserInfo.dll")
RMDir:
RemoveDirectory("I:\DOCUME~1\5THBOR~1\LOCALS~1\Temp\nsp2AC.tmp\")
Any help is appreciated. Thanks

Flash 11 will not install in Firefox

So i just did my 6 month formating. Installed all my drivers and then installed FireFox. Went to youtube, of course flash was needed. It tried to install the 10.3 but failed because of it being out of date i guess, but it directed me to adobe. I downloaded the 64 bit installer for Windows 7 (yes, im running 64 bit win 7). Installed it, it said it was succesful, it then opened up Firefox automatically and it said it was installed on the web page.
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I then uninstalled it with the uninstaller from adobe, reinstalled, and still it doesnt work in any browser.
I did install shockwave and that is working fine, but not flash, please help.

Did you run both installers (plugin & ActiveX)?
Download them from http://forums.adobe.com/thread/909550
Cartire wrote:
But its not.
How exactly is it "not installed"? What do you see when you go to a Flash site?

Adobe Flash Player 12.0.0.77 will not install on mozilla firefox 27.0.1

I am using Windows XP. I downloaded Adobe Flash Player 12.0.0.77 and installed it on my computer. I opened Mozilla Firefox 27.0.1 and went to Youtube. I clicked on a video to watch and received the following:
The Adobe Flash Player is required for video playback.
Get the latest Flash Player.
I opened Control Panel of my computer and saw that Adobe Flash Player is indeed installed. So why is Firefox not using it?

It seems to work in my system. However, to get a reasonable answer you should ask in the Flash forum and not this one.

Upgraded to firefox4, but it will not install the upgrade. Have restarted firefox many times.

when I open Firefox and it asks if i want it for my default and i say yes, it tells me I must restart to install previous upgrade. Have done this many times. I have also tried to uninstall Firefox and it won't let me.

You seem to be using the latest Firefox 4.0.1 version
*Mozilla/5.0 (Windows NT 6.0; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
Run the Firefox program once as Administrator (right-click: Run as Administrator).
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* http://kb.mozillazine.org/Software_Update (Software Update not working properly)
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C:\Users\<user>\AppData\Local\Mozilla\Firefox\Mozilla Firefox\updates
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Adobe flash update will not install because unable to end firefox process

Adobe attempts to update flash for firefox 4 but says firefox is running and unable to install even when firefox is closed. attempted to end resident start-up firefox process which previously solved the problem but windows task manger says access is denied, Vista 64. I tried this several times

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Flash plugin will not install since upgrading Firefox

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