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:

Works in Firefox 4.0b3

Submitted by dreyco (not verified) on Tue, 2010-08-24 19:42.

Works in Firefox 4.0b3. You will however need to navigate to: %APPDATA%\Mozilla and then create a plugins folder there.

Install flash player 10.1 in Firefox 4.0b4 without admin rights

Submitted by Florisz (not verified) on Mon, 2010-09-06 08:40.

In addition to dreyco for Firefox 4.0b4 Portable edition:
I pasted the files in the folder: App - DefaultData - plugin
The other folder: Data - plugins doesn't work anymore for Firefox 4 portable.

Correction: It doesn't work

Submitted by Florisz (not verified) on Tue, 2010-09-07 12:40.

It doesn't work for flashplayer 10.1. Or the download files are older versions of the flasplayer. I realy need: 10.1.82
Anybody any tip for the Firefox 4b4 portable edition from portable apps?

Good news. Thanks for your

Submitted by fabio on Wed, 2010-08-25 00:00.

Good news. Thanks for your contribution.

Thank you!

Submitted by Mike (not verified) on Mon, 2010-08-23 18:08.

Your directions were easy to follow and effective. Between Flash now working correctly in Firefox and OpenOfficePortable, the crippled systems at my school are now useful to me. Thanks!


Submitted by Anonymous (not verified) on Thu, 2010-08-19 20:32.

You rock! You saved me about 3 days worth of trying to get my system admin to install flash.

Works!!! Thanks

Submitted by Amit (not verified) on Wed, 2010-08-18 08:05.

Works!!! Thanks

Fantastic work!!!!!! Thank

Submitted by Anonymous (not verified) on Mon, 2010-08-16 15:40.

Fantastic work!!!!!! Thank you

That i s great! Really GENIUS!

Submitted by Bin (not verified) on Sun, 2010-08-15 16:47.

Submitted by Paul (not verified) on Tue, 2010-06-22 17:22.

Really Thanks!!
You haven't no idea how many hours I spend to solve this trouble,
very helpfull!
It is the most essential program for a PC to use. Apppreciate and thankful to you

problem solved

Submitted by ry (not verified) on Wed, 2010-08-11 14:48.

wow! thanks a lot for a very wonderful post. it's really a big help. thanks again.


Submitted by SATHIS (not verified) on Mon, 2010-08-09 13:53.


good luck

Submitted by Anonymous (not verified) on Mon, 2010-08-30 23:05.

the system admin will be using remote access program of some sorts. you're most likely screwed. if it's possible the only way I can see would be to block the port that the program uses to access your terminal, you are on a network that has been built ground-up by the powers that be, the best thing you can do is surf for random stuff at home...


Submitted by Anonymous (not verified) on Thu, 2010-07-29 22:46.

The Bane of system administrators everywhere!

You are a genius !! !

Submitted by Anonymous (not verified) on Thu, 2010-07-29 19:09.

Thanks a lot ! It works perfectly ! You are a genius. Thanks for this great post !

its great !it really works

Submitted by Anonymous (not verified) on Sun, 2010-08-15 08:17.

its great !it really works thanks

email extractor

flash player 10?

Submitted by Kate (not verified) on Thu, 2010-07-29 06:09.


This post is very helpful but the xpi file is an old version and is not working the 3.6.8 version of firefox. Could you please tell me where to download the current one for version 10? i have looked everywhere and can't find anything helpful. The previous comments relating to this have links that dont work. Please help

Install one available from here

Submitted by heartrobber18 (not verified) on Thu, 2010-07-29 16:54.

Well I have uploaded the admin free package available at , Download the file mentioned in that post, double click launch and you are done. No extra steps needed. :) Leave a comment if that helps

heartrobber18 ***********

Submitted by hawkform (not verified) on Tue, 2010-09-21 23:18.

heartrobber18 *********** brother your so greattttttttt!!! it works for me with out having copy this file to plugins.. It was work with my portable firefox. Thank you so much!!!!

Tip a godsend:)

Submitted by Anonymous (not verified) on Sun, 2010-08-08 03:34.

You're a lifesaver.Admin rights can suck it:)
Tried all the other tricks but yours is the only that one that works!


Submitted by Kate (not verified) on Mon, 2010-08-02 03:29.

Thank you so much, worked perfectly!

install flashplayer with out admin

Submitted by Faizan (not verified) on Tue, 2010-07-27 16:52.

for installing flash player without administrator u can install google crome
it will install easily with out Administrator


Submitted by Fringe (not verified) on Mon, 2010-07-26 13:57.

Thx alot man .... it works prety good

It works .

Submitted by ABHI (not verified) on Thu, 2010-07-22 14:59.

Thanks a lot. worked like charm...


Submitted by Anonymous (not verified) on Thu, 2010-07-22 11:11.

what happens if the %APPDATA%\Mozilla\Plugins\ has been disalowed and there is no Mozilla folders when i search them, and i do have mozilla if you are wordering :D


Submitted by Bin (not verified) on Sun, 2010-08-15 16:51.

You can only put %APPDATA% on cmd and put a folder named as Plug-ins and then paste the folder of the flsh player

try this

Submitted by fabio on Thu, 2010-07-22 14:31.

Try to create a bookmark. Then close Firefox. Reopen it. If the bookmark is still there then you have a Mozilla profile folder somewhere, and it's writable. You only have to find it.

THANKS!!!!!!!!! THANKS!!!!!!

Submitted by Suraj Karki (not verified) on Sat, 2010-07-17 11:44.



Submitted by Anonymous (not verified) on Fri, 2010-07-16 12:18.



Submitted by Alex (not verified) on Thu, 2010-07-15 20:29.

Hi man,
really a nice work, took a lot to find u but ty a loot

i did it all

Submitted by Anonymous (not verified) on Wed, 2010-07-14 23:08.

i tried every thing on here and still the bar doesnt show anymore but i still see the download plugins where the shows should be I MADE THE %APPS% folder ther was no plugins i made 1 put file there and didnt work i did the plugin inside and outsiDe %APPS%i did it in mozilla too i did it all ways trust me and it still doensnt work i need help guys i just wanna see naruto HELP ME PLZ!!!

You are a life saver!!

Submitted by Anonymous (not verified) on Wed, 2010-07-14 21:00.

Thank you so much! You are rock! You save my life otherwise I'll be irritated to death because of this upgrade

I want to hug you....

Submitted by Cubicle (not verified) on Wed, 2010-07-14 16:35.

Well, not really! But it worked!
i was going through it step by step, and i thought i had over once i wasn't able to replace them directly,
and then i saw the next, and started grinning with a sneaky state of mind! >:D


Submitted by Anonymous (not verified) on Thu, 2010-07-08 15:58.

Thanks bro, this rocks socks...

Thank you!

Submitted by Anonymous (not verified) on Thu, 2010-07-08 10:05.

AMAZING! Thank you so much.

Works great

Submitted by Anonymous (not verified) on Thu, 2010-07-08 04:57.

Great article, worked a treat!


Submitted by lucky (not verified) on Wed, 2010-07-07 09:10.

i'd try this one n' work for sure :D

You are great

Submitted by Domusmagna (not verified) on Wed, 2010-07-07 07:48.

Thanks You so much! It works great. During the last month I have not found an expert like You!

Thank you

Submitted by Richard (not verified) on Fri, 2010-07-02 19:30.

Thanks dude. I had the same problem with flash at work.. its enabled for IE but disabled for firefox since i run a portable version and doesnt let me install the plugin due to admin rights. your solution worked perfect!!

Very clear instructions, work

Submitted by DaXiong (not verified) on Fri, 2010-07-02 05:32.

Very clear instructions, work for Portable Firefox v3.6.6. Thanks

Thank you!

Submitted by Anonymous (not verified) on Thu, 2010-07-01 18:16.

This works great. Thank you.

Awesome thanks!!!! :D

Submitted by Anonymous (not verified) on Thu, 2010-07-01 10:15.

Awesome thanks!!!! :D


Submitted by Colleen (not verified) on Wed, 2010-06-30 18:57.


Okay, I am having some issues. 7-zip won't convert the .xpt to .zip. I took a screen cap of the .dll file being extracted:, but nothing happens for the .xpt file besides the extraction/copy box flashing on the screen (sorry, I am not so tech savy) when I try to extract or open inside.

Any solutions? I also tried the extractor, but it wouldn't let me extract the file.


Read the guide carefully

Submitted by fabio on Wed, 2010-06-30 23:59.

You don't need to convert the .xpi you downloaded to .zip using 7-zip. You just need to rename the .xpi file to .zip, open it with 7-zip and extract the files there.

If you have problems feel free to mail me and I'll happily send you the needed files.

Old version

Submitted by Cheesehead Dave (not verified) on Wed, 2010-06-30 13:55.

The process works perfectly for me, but the link in the instructions is for an older version of Flash, not the newer 10.1.

Read the comments below. Some

Submitted by fabio on Wed, 2010-06-30 23:56.

Read the comments below. Some users have been able to get the most recent flash version.

This is Awesome!!

Submitted by Crazy Photon (not verified) on Tue, 2010-06-29 05:28.

Thanks a lot! :)


Submitted by Anonymous (not verified) on Mon, 2010-06-28 12:29.

It's Really Great Man

Thank ! The newest Firefox

Submitted by Saber (not verified) on Mon, 2010-06-28 10:12.

Thank ! The newest Firefox Update has Problems with this old Flash- Plugin, in case of slow performance. Please update the new Flash 10 version. Many many thanks.


Submitted by DJ (not verified) on Mon, 2010-06-28 07:55.

Works well on my Firefox portable, THX.

For the plugin I used folder ...Firefoxportable\App\Firefox\plugins

Just one thing:
I assumed the link is for 10.1 Flash, but its only version

The 10.1 is here

To be exact its version


there is no xpt file in there

Submitted by Anonymous (not verified) on Mon, 2010-06-28 19:05.

there is no xpt file in there