I would like to use Flash Player to show web contents but since today (12 Jan 2021) Adobe is blocking it.
Is there a way to use it?
I've tried Firefox, Chrome, Safari and Brave browsers.
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I managed to make the "time bomb defuser" work, as indicated here:
Disable EOL uninstall warnings: Disable auto updates when installing Add "EOLUninstallDisable=1" to mmc.cfg in C:\WINDOWS\system32\Macromed\Flash (C:\Windows\SysWOW64\Macromed\Flash on 64-bit) --- Defuse flash player time bomb: Time bomb trigger is the timestamp 1610409600000.0 encoded in double precision floating point (0x42776f3e46400000): 00 00 40 46 3E 6F 77 42 replace with infinity: 00 00 00 00 00 00 F8 7F C:\WINDOWS\system32\Macromed\Flash (C:\Windows\SysWOW64\Macromed\Flash on 64-bit) Flash32_32_0_0_453.ocx (offset: 453: E1D968, 465: E1DBD0) NPSWF32_32_0_0_453.dll (offset: 453: E3A2E0, 465: E3A32A) pepflashplayer32_32_0_0_453.dll (offset: 453: CBFCE0, 465: CBFCB8) C:\WINDOWS\system32\Macromed\Flash (64-bit): Flash64_32_0_0_453.ocx (offset: 12AF6A8) NPSWF32_32_0_0_453.dll (offset: 128FBD8) pepflashplayer32_32_0_0_453.dll (offset: 15F6C30) NOTE: Flash32_32_0_0_453.ocx (and Flash64) will always be write protected - rename it to Flash32_32_0_0_453.bak - save edited copy as Flash32_32_0_0_453.ocx - to delete the backup file: - properties > security > advanced > delete the "DENY Everyone" permission
Here's what I did:
C:\Windows\SysWOW64\Macromed\Flashfor 64-bit) to somewhere where I have write permission;
000040463E6F7742(the timestamp) and replace it with
Flashdirectory (to avoid permission issues) to
Flash.bakor something else;
Flashdirectory with the modified binary to its original location.
I just tested an offline desktop application which had stopped working, and it works again.
Note: the linked page mentions
mmc.cfg, but my Flash folder had a
mms.cfg file instead; maybe it was a typo, but in any case I added the
Note: In my case, the application using Flash works offline and should present minimal security risks. For continuous usage in a browser, I'd prefer following Tetsujin's recommendation and try a standalone but supported Flash player, such as Newgrounds'.
There are potential workarounds in other answers below. This answer now probably more closely reflects the 'official stance'.
The Flash plugin itself is responsible for the block, as of 12 Jan.
Microsoft has also time-bombed their own browser, as have many of the other majors, Chrome, Firefox etc.
Apple effectively blocked Flash some time ago.
Adobe have removed all Flash downloads & all major browsers have also blocked it in their latest versions.
Since Adobe is no longer supporting Flash Player after the EOL Date, Adobe will block Flash content from running in Flash Player beginning January 12, 2021 to help secure users’ systems. Flash Player may remain on the user’s system unless the user uninstalls it.
As to why it also fails on local content as well as remote web content…
More specifically, what's happened is that Adobe snuck a logic bomb into its Flash software some releases ago that activates on January 12, and causes the code to refuse to render any more content from that date. Adobe has also removed previous versions from its site, and "strongly recommends all users immediately uninstall Flash Player to help protect their systems."
It also seems that Microsoft themselves will time-bomb Flash too. See the announcement at Update on Adobe Flash Player End of Support
Updated April 2021 :
To help keep our customers secure, Microsoft will remove the Flash component from Windows through the KB4577586 “Update for Removal of Adobe Flash Player”.
Beginning in January 2021, Adobe Flash Player will be disabled by default and all versions older than KB4561600 released in June 2020 will be blocked. Downloadable resources related to Adobe Flash Player that are hosted on Microsoft websites will no longer be available.
Note from linked page on Edge/Chromium roadmap -
Flash support/ capability will be complete removed from Chromium. It will no longer be possible to enable Flash Player with Enterprise policy in Chrome 88+.
#1. Configure Flash to run after 12 Jan 2021.
To run Flash content after 12 January 2021, you need:
All this is documented on "Adobe Flash Player EOL Enterprise Information Page" (the regular EOL page does not contain that information): https://adobe.com/products/flashplayer/enterprise-end-of-life.html, and in the Flash Player Administration Guide linked from that page.
In short, you need to create a file called
mms.cfg which should be located in the following directory, depending on operating system (if the directory does not exist, create it):
(of course if you installed Windows in a different directory that
C:\Windows, change the paths appropriately)
To allow Flash content to run, you need to put in the
mms.cfg file lines specifying which sites Flash player is allowed to access, in the following form:
If you want to specify both https and http for a site, you may put two lines for https and http, or you can use the following shortcut:
(you may also specify more detailed URLs, but usually you'd want to allow the entire sites. More details are in the mentioned Flash Player Administration Guide).
You may also specify something like
AllowListUrlPattern=file:/// for local files, although it looks superfluous because Firefox does not support playing local Flash files via Flash plugin anymore (it's the only browser I use, so I can't say anyhting about other ones, sorry), and standalone Flash player (aka Flash Player Projector, which is still available for download here) still runs local files specified by command line or loaded via menu option.
You can also put
mms.cfg file to suppress prompts to uninstall Flash that are mentioned on the Flash EOL page.
#2. Use a specialized browser.
Y8, a Flash-based gaming website, seems to distribute their own browser that supports Flash. Seems to be a customized Chromium version with integrated Flash support. I haven't tried it. It can be downloaded here.
Other gaming sites, such as Newgrounds and Kongregate, also seem to provide their own Flash players, but they are both Windows-only applications and probably work only with the site they are designed for (again, I didn't test them as well). Y8's browser seems to be a more general solution.
Update: from what is written on the Newgrounds forum, their player uses the original Flash ActiveX control so it requires the
mms.cfg file anyway. Newgrounds switched to using Ruffle (see below). Kongregate still advertises their player.
#3. Use the Flash emulator.
Adobe removed the flash player download link from their website in 2021. Even if you have a spare copy of the installer on your computer, it still won't work as it's an "online installer" that retrieves a copy of the latest version from Adobe's website, which Adobe also deleted in 2021 so the installers Adobe provided for free download in 2020 won't work in 2021.
However I managed to get an offline installer that works for Windows, Mac, Linux, ActiveX, NPAPI and PPAPI. No internet connection is needed and it's version 188.8.131.525 the latest version.
I tried running the offline installer in 2021 and it works for me, even after Windows Update pushed an update that uninstalls Flash from the computer. You can check if Flash is installed by going to Control Panel, getting off category view. Click Flash to check the flash version, if there's no flash option then it's not installed.
The mainstream web browsers Edge, Chrome, Opera and Firefox removed support for all NPAPI plugins (chrome 45 in 2015, firefox 52 in 2017) and in 2021 they stopped their exception for Flash (chrome 87, firefox 85). So if you want a web browser that supports flash (by supporting NPAPI), use Basilisk web browser. Basilisk also supports XUL extensions that Firefox no longer supports.
So it looks like Adobe added a kill switch to Flash so the installed software would stop working after a certain date, being 12th January 2021 12/01/21. All flash embeds would be replaced with this image.
I've found 2 solutions to this.
FlashPatch is a free software that patches the flash player already installed on your computer.
Flashpatch says to run the file as administrator, but for me I didn't need to.
It can now patch any version of flash, so it'll work with older versions, not just 184.108.40.2065 for chrome (PPAPI), firefox and safari (NPAPI) and for Internet Explorer (ActiveX).
The kill switch adobe uses, changes the
EnableAllowList value in
1 by force, so even if you change it to
0 Flash will ignore it after 12/01/21 and still keep it as
1. What this means is that instead of flash being enabled for all websites, you now have to whitelist every website you want flash to run on.
On your computer you need to edit the
This file can be found under:
/Library/Application Support/Macromedia/mms.cfgfor Mac OS X
C:\Windows\System32\Macromed\Flash\mms.cfgfor 32 bit Windows
C:\Windows\SysWOW64\Macromed\Flash\mms.cfgfor 64 bit Windows
Make sure add these lines to the file with the website to whitelist, and modify them to suit the domains to whitelist. You can have multiple
# Enable running flash on # only whitelisted websites # the 12/02/21 killswitch forces this to 1 AllowListPreview=1 # Pattern to enable Your Legacy Flash Web App: # AllowListUrlPattern=file: # AllowListUrlPattern=*://ferryhalim.com* # AllowListUrlPattern=*://*.ferryhalim.com
For good measure, you can also add
You cannot have a
* wildcard for the domain/dns name or TLD, but you can for the
subdomain, so you don't need to have 2 lines for
https or a new line for every subdomain.
Refresh the page or restart your web browser and it should work. Technical documentation on how to use
AllowListUrlPattern is on Page 37 of this adobe pdf.
You can open Flash (URLs and local files) in the official standalone players called "Flash Player projector content debugger" and "Flash Player projector".
Currently, you can download them here: https://www.adobe.com/support/flashplayer/debug_downloads.html
flashplayer_32_sa.exe flashplayer_32_sa_debug.exe flash_player_sa_linux.x86_64.tar.gz flash_player_sa_linux_debug.x86_64.tar.gz flashplayer_32_sa.dmg flashplayer_32_sa_debug.dmg
I spent many hours on this and eventually found my ideal solution. After that, I found out other people are suggesting something very similar. However, I am still posting it since I am sure it will help some people, because of some details and because I am providing a working sample.
What I did is setting up a portable version of 32-bit Google Chrome for Windows equipped with last time-bomb-free version of PPAPI (Pepper) Adobe Flash.
Here it is a step-by-step description:
When everything's done, you can visit Flash websites allowing them with usual per-site temporary setting.
A note about step 3: I performed it in a VirtualBox environment, so I am not sure if it will work on an updated computer. In this case, I suggest you find an old computer or use a virtualized Windows 7. Just to be clear: the final product works on any PC (i.e. updated Windows 10 non-virtual machine).
If you don't want to go through all above steps, you can download a copy I uploaded here (87 MB). This is a careful copy I created where only above steps where performed.
And of course, I recommend you use it only for trusted websites, since you are running a no-more-supported software on top of an outdated browser. I believe it has its use cases, though. My use case is the opportunity to open the settings for an old Netgear Stora NAS through its Flash-only interface.
This worked for me. (Chrome Only, v87 or older) (As of version 88, Flash support is completely removed)
Structure should look like this *\Chrome\User Data\PepperFlash\220.127.116.111*
Another answer to bypass this error for some applications
Download Macromedia from here
For windows you can install flashplayer10_1r53_64_winax and after that the error message vanished.
First a note on a finding a donor: No, I won't link to one. Any donor you see online is not a legal option, and therefore likely to be at least somewhat unsafe.
Instead, look for an older computer sitting around that hasn't turned on in a while... something retired a few months before flash was killed. Maybe your last laptop. If you or anyone you know has such a machine sitting around, you probably have a copy of the Flash plug-in available for the taking.
In my case, to be safe, I also pulled the hard drive from the old machine and connected it as a guest disk in another computer, to be sure the Chrome updater wouldn't nuke the plugin as soon as I started the machine.
On the guest disk, look for the following folder:
C: is the guest disk drive letter. Copy the entire contents of the
One other thing here is Chrome claimed to include Flash out of the box, but this was only partly true. What actually happened was it downloaded flash on first use. Therefore, it's possible to find an old machine where the Flash client doesn't exist because it was never used.
Once you have your donor, look for an older version of the Chrome Portable App. In my case, version 79 still worked, and you could probably go a little newer if you want (I've heard up to version 87 is possible). I also took the 32-bit version, because my donor plugin came from a 32-bit machine. Most people will still want the 64-bit version.
Paste the contents of the
PepperFlash folder from before in this folder of your new Portable Chrome installation directory:
Now you will be able to use Flash with the Portable Chrome installation.
The following caveats still apply:
This is my solution, just tested. Unfortunately there are still website which haven't been updated since Flash EOL, some of them quite relevant (in my case was the United Nations website). Since recent version of flash player have the notorious kill switch there is no way to make it working with a modern browser, I also tried some emulator like Ruffle, but none of them fully support Action Script 3.0 which a lot of the flash applications have. Solution is described here: install Flash Player 32 which is the last one without the killswitch and use a browser that still support Flash, in my case Waterfox. Everything works!
Here's what I did to enable Flash again in Internet Explorer 11:
regsvr32 %WINDIR%\SysWOW64\Macromed\flash\flash32_32_0_0_371.ocx regsvr32 %WINDIR%\SYSTEM32\Macromed\flash\flash64_32_0_371.ocx
After these steps, Flash was working :)
Try a program called "ruffle"
Ruffle is available for the desktop or as a web browser extension
You can test it with this
example flash thing from an old simple website that's good for an example to verify if flash is working or not.
without the extension it says "this plug-in is not supported"
with the extension it should work.
so can see before and after to verify that it worked.
note- I updated this answer. The extension I mentioned in an earlier edit of the answer, is/was an extension based on ruffle but is no longer available and maybe google didn't like it. But I think it makes sense to try using ruffle.
First you need a browser version that still supports Flash Players. For example Firefox 78.12.0 ESR. Next you need a Flash Player Version.
Used this to connect to an old Cisco NAS with only an Adobe Flash Interface.
Obviously you need to make sure that the time and date aren't updated otherwise it will just stop working.
BlueMaxima's Flashpoint is a project that preserves tens of thousands of games and animations. They write:
By combining the power of Apache, a custom-built launcher, and our own application called the Flashpoint Secure Player, we can play web-based media in a quick, user-friendly environment without leaving permanent changes or security holes on your computer.
If the web content you want to access is not yet available in Flashpoint, you can request it to be added by filling in a form.