Installing Flash Player Plugin on Firefox without having Administrator Access or Premissions

Last updated on Mon, 2012-07-16 09:14. Originally submitted by fabio on 2007-02-19 16:32.

UPDATE: The following guide, originally written for Firefox 2, has been used successfully on Firefox 3, 3.5, 3.6, 4, 5, 6, 7, 8, 9, 10, 11 and 12. Users of Firefox Portable edition (same versions) also have been successful using this guide.

The Windows computers available at my University permits login only by autenticated users (students) who don't have Administrator access and permissions.

Installing software on those PC is then not possible.

Recently they finally installed Firefox 2 but without the Flash plugins, which is absolutly useful/needed.

I then tryed to install the Flash Player using the "standard" way (click on the missing plugin link then install the plugin..). However without administrator plugins it was not possible to install.

Then I started doing some tests trying to install the plugin manually. Now I have it installed and working perfectly!

This is how I managed to install it without administrator permissions:

  1. Download this ZIP archive to your hard disk.
  2. Extract the file in the archive. You can use any program capable of opening .zip files (WinZip, WinRAR or the free and great 7-zip). There are also websites which can uncompress archives:
  3. Copy the file NPSWF32.dll to %APPDATA%\Mozilla\Plugins\
    • %APPDATA% is not a real folder. It's an alias. By inserting it in your windows explorer address bar, you'll be redirected to the real folder which holds your applications profiles and settings. The location of this folder depends on various setting that's why we need the alias and not an absolute path.
    • You can open this folder simply choosing "Start → Run → Type in %APPDATA% → OK".
    • In case you don't have a Plugins folder you can create one and place your files there.
  4. Restart Firefox
  5. Enjoy your flash websites!

Profile folder on MozillaZine Knowledge Base.
Installing Flash in Portable Firefox with no installer at Blog.

Posted in:


Submitted by Romar (not verified) on Wed, 2011-08-31 04:58.

You are a genius man.. thanks so much for this help.. at least, i could now see youtube in my computer.. :D cheers

It dosn't work for me with

Submitted by Anonymous (not verified) on Tue, 2011-08-30 11:31.

It dosn't work for me with tor-browser-1.3.27 (i've got most of webs blocked at work). Tried to copy npswf32.dll to different plugins dirs (like FirefoxPortable\Data\plugins, FirefoxPortable\App\DefaultData\plugins and FirefoxPortable\App\Firefox\plugins). Weird thing couse I've done this some timie before and it works then.

This works, surprisingly!

Submitted by Anonymous (not verified) on Thu, 2011-08-11 12:24.

I have to use FF 3.6 at work, by using your instructions I can now use Flash Player files.

Thank you very much!


Submitted by scr (not verified) on Tue, 2011-08-16 12:42.

it works
huge thanks!!!

SIr, I followed every step .

Submitted by aditya (not verified) on Thu, 2011-08-04 19:27.

SIr, I followed every step . The link provided every is blocked so I downloaded the dll file separately and pasted into the plugon folder of fire fox. Still its not working..

can any one just provide the two files in winrar or compressed way so that I can download it and use it..For a second try..

Thx :)

Submitted by Blu (not verified) on Wed, 2011-08-03 10:11.

HI, my parents gave me this laptop from a garage sale and the admin was locked and we couldnt get in...anyways i had to make do with non-admin rights, which makes installing things hell, seeming i always wanna download games as such, this is the first real thing i was actually looking for, at first i couldnt find %APPDATA% but i kept looking at the wrong spot, i didnt read all your instructions, this i am going to pass onto my friends, thanks so much
By the way, this is totally off subject,
But Mark Zukkerburg, creator of facebook, is closing down facebook on 12 March 2012....why he doesnt just sell the rights i dont know :(


Submitted by Anonymous (not verified) on Wed, 2011-08-10 09:34.

No he isn't you vegetable.


Submitted by Anonymous (not verified) on Wed, 2011-08-03 11:43.

goto burn the disk and you can reset the admin password

Great! Thanks for help

Submitted by Lisa (not verified) on Wed, 2011-07-20 21:12.

Thank you very much, you made my day, your tip is THAT help I have been looking for. All the best to you :o)



Submitted by Amin (not verified) on Thu, 2011-07-07 11:05.

Excellent.. worked like a chocolate cake for Firefox.. Thanks a lot..!!

Excellent Work!

Submitted by T.A (not verified) on Fri, 2011-07-01 08:23.

Excellent Work!
Thanks a lot for helping!
It works perfectly. If there is no folder name Plugin in Mozilla folder then create it and copy that file in it.Then enjoy......:D

Worked like a CHAMP!!!

Submitted by NocoLoco (not verified) on Tue, 2011-06-28 20:51.

Admin is locked down here at my location and folowing these instructions worked perfectly! You are the Bestest in the westest!!!!! You rock! Thanks a bunch Fabio!


Submitted by man (not verified) on Tue, 2011-06-28 14:24.

what a stroke of geniuses


Submitted by Ghulam Ali Rashidi (not verified) on Tue, 2011-06-28 12:56.

Thank you so much very muck
Finlay I got and i can see flash movies without stalling flash player

thanks so much

You are a genius

Submitted by Kunal (not verified) on Mon, 2011-06-20 06:12.

Thanks for the step-by-step guide. I can finally work with flash on my FF 4 portable. Awesome man.

YOU DA MAN !!!! 2 Hours of

Submitted by Anonymous (not verified) on Fri, 2011-06-10 23:29.

2 Hours of visiting junk and then finally this.

working 100%

Submitted by Anonymous (not verified) on Fri, 2011-06-10 12:50.

thanx a lot its working 100% tested and approved

Nice Tip... Thanks a lot for

Submitted by Vijai (not verified) on Fri, 2011-06-03 21:09.

Nice Tip... Thanks a lot for sharing... It worked perfectly... Im spreading this tip to all my colleagues inside the module....


Submitted by Anonymous (not verified) on Thu, 2011-06-02 14:09.


Download the file from

Submitted by fabio on Thu, 2011-06-02 16:12.

Download the file from uncompress it and follow the article. Don't bother about flashplayer.xpt, just copy NPSWF32.dll

Just what I needed!

Submitted by Michael (not verified) on Tue, 2011-05-31 10:47.

Finally found the tutorial I needed and that works fine. Many others are just outdated, not working or with broken links.

Running just fine. THANKS A LOT!

I just did this on the brand

Submitted by Anonymous (not verified) on Thu, 2011-05-26 21:13.

I just did this on the brand new firefox 4.
Use the second link but right click and save as. Unlike what the tutorial says there is only one file that I needed to transfer over. Also if you cannot access certain websites while at work or school or whatever use Works like a charm. I did all of this while using piemagnet.

Thats incredible

Submitted by Happy as a Smiley (not verified) on Tue, 2011-05-24 11:52.

I want to thank you so much for taking the time and posting this.

I searched for hours and all tips were a bunch of bullshixx - UNTIL I found your tip!

This works perfectly!

you rock

Submitted by zubair ismail (not verified) on Tue, 2011-05-17 11:43.

WOW man this works i am really very very happy.NOW I CAN USE THIS IN MY UNIVERSITY LAB>HEHEHEHE

The link for "XPI archive of

Submitted by E-mannen (not verified) on Sun, 2011-05-01 05:49.

The link for "XPI archive of the Flash Player Plugin" on adobes servers doesn't work anymore.
They've changed it to something else or removed it completely. I'm stuck on this operation at the moment :-(

Just use the file in

Submitted by fabio on Sun, 2011-05-01 08:11.

Just use the file in and follow the procedure just for this file.. it should be enough..


Submitted by AsianBarbie345 (not verified) on Tue, 2011-04-19 16:14.

omgosh thank you so much! this was very helpful and easy to follow!

bless you! :)

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Submitted by inter4523 (not verified) on Sat, 2011-04-23 12:59.

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Google chrome

Submitted by Anonymous (not verified) on Tue, 2011-04-12 18:38.

You download Google Chrome portable with inbound flash instead of Firefox. No hard feelings about firefox, but Google Chrome Rocks!


Submitted by Anonymous (not verified) on Sun, 2011-04-10 13:58.

this is very very usful for me
tanks alot!

Flash files for version

Submitted by Anonymous (not verified) on Sat, 2011-03-26 11:33.

In case you have access to a computer where you have admin rights, just install the latest flash version locally. Then you can find the two files (xpi and dll) in the following folder and you can copy them to the other computer where you do not have admin rights or to the firefox portable:


Worked for me with version
(just in case you would not like to download the ddl from "somewhere")

Works on the new Firefox 4

Submitted by Anonymous (not verified) on Wed, 2011-03-23 16:46.

Works on the new Firefox 4 too! Thanks so much!!!

Thank you very much! it

Submitted by GUXXX (not verified) on Sun, 2011-03-20 00:35.

Thank you very much! it really works, I use it at work because I dont want to use explorer. i use firefox portable.

thanks man!, really works

Submitted by Anonymous (not verified) on Wed, 2011-03-16 15:24.

thanks man!, really works


Submitted by Anonymous (not verified) on Mon, 2011-03-07 21:43.

This is excellent!

It should be place in

Submitted by TheMadCat (not verified) on Fri, 2011-03-04 20:17.

It should be place in \Data\plugins

See the file "plugins_readme.txt"

Took 20 seconds...

Submitted by Andy (not verified) on Thu, 2011-03-03 11:31.

...worked a treat! Thanks.

Adobe Flash Player

Submitted by Jesse Nguyen (not verified) on Tue, 2011-03-01 01:49.

How do I install adobe flash player to Mozilla Firefox?

You can follow the guide in

Submitted by fabio on Tue, 2011-03-01 09:13.

You can follow the guide in the article.. or did you had problems with it?

I have problem on installing flash player

Submitted by Fay (not verified) on Wed, 2011-03-02 08:08.

I think that the file called "flashplayer-win.xpi" may need an upgrade because I can't do this procedure with the new Firefox(3.6.14)and the AdobeFlash Player (
Thank you

Check older comments for how

Submitted by fabio on Wed, 2011-03-02 08:47.

Check older comments for how to get a more updated version.

Seriously, stop posting that

Submitted by Anonymous (not verified) on Mon, 2011-03-07 12:35.

Seriously, stop posting that - you have 9 pages of comments now, just update the article!

Article updated. Thanks for

Submitted by fabio on Mon, 2011-03-07 14:24.

Article updated. Thanks for pushing me doing so.

thanx man.. too good..

Submitted by ykmantri (not verified) on Thu, 2011-02-24 14:32.

thanx man.. too good..

Ok, I got the folder,

Submitted by Jsanchez (not verified) on Fri, 2011-02-18 21:22.

Ok, I got the folder, however, it still asks me for an admin password! any ideas here?

You may have a too restricted

Submitted by fabio on Fri, 2011-02-18 21:38.

You may have a too restricted system..

Plug in folder

Submitted by Jsanchez (not verified) on Fri, 2011-02-18 15:38.

I have no idea where i create the plug in folder named %APPDATA%...? can you help me please?

Plug in folder

Submitted by Administrator (not verified) on Wed, 2011-02-23 20:00.

Just type in Start - Run - %APPDATA%

good job

Submitted by mfadrigalan (not verified) on Thu, 2011-02-17 15:43.

good job bro its very useful!


Submitted by Anon (not verified) on Thu, 2011-02-17 13:15.

thanks a lot it works right