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 Anonymous (not verified) on Mon, 2010-06-28 03:45.



Submitted by Anonymous (not verified) on Sun, 2010-06-27 23:46.

Everything works until step 4. I don't see the %APPDATA%\Mozilla\Plugins\ folder

You should have a

Submitted by fabio on Mon, 2010-06-28 00:55.

You should have a %APPDATA%\Mozilla folder. You should create a Plugins folder within %APPDATA%\Mozilla.


Submitted by Anonymous (not verified) on Sun, 2010-06-27 14:11.

I still can't get this to work. I followed all the steps, but I keep getting a message that I need the .xpi plug in, and I can't figure it out. Please tell me I'm just being dumb and missing some minor detail... HELP!!! It's driving me nuts!

Just carefully follow the

Submitted by fabio on Sun, 2010-06-27 17:46.

Just carefully follow the guide. Everything should be there.. and remember to close Firefox and reopen it after following the guide.

If you have any specific doubt or problem just ask.. but with such little informations I can't help you more.

Many Thanks!

Submitted by Zoli (not verified) on Fri, 2010-06-25 15:21.

Many Thanks!

This does work! Now I can

Submitted by Anonymous (not verified) on Fri, 2010-06-25 15:00.

This does work! Now I can get back to all those fb vids I couldn't watch at work before ;)

Thanks a lot! Works

Submitted by vonmixer (not verified) on Fri, 2010-06-25 03:58.

Thanks a lot! Works beautifully

no sound

Submitted by ariel (not verified) on Wed, 2010-06-23 17:19.

this works fabulously! thank you! however, i am not receiving the audio from the flash player at my website at did i do something wrong? thank you.

If you are able to use eg

Submitted by fabio on Sat, 2010-06-26 21:38.

If you are able to use eg youtube without problem then there shouldn't be any problem with any other website.

No audio

Submitted by Anonymous (not verified) on Mon, 2010-06-28 00:08.

I just installed it and am getting no audio whatsoever for anything at all. Can you help me?

Are you sure your PC is able

Submitted by fabio on Mon, 2010-06-28 00:57.

Are you sure your PC is able to play sounds/music? Some PC used at work are so poor that they even have sound speakers. Are you able to ear some sounds from the pc?


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!

I did it like you said, it

Submitted by Plonker (not verified) on Tue, 2010-06-22 10:26.

I did it like you said, it doesn't appear the message "Install Flash Player" anymore, but I still can't watch Flash Content.
Any suggestion


Submitted by ragmaxone (not verified) on Tue, 2010-06-22 07:27.


Is there any update of Flash ? Where can we get the latest XPI ?

Thanks in advance.

Flash 10.1 automated setup without admin rights

Submitted by Heartrobber18 (not verified) on Wed, 2010-06-23 11:23.

Try this one at
It really works. No steps to follow just download the EXE and run.

ADMIN EDIT: removed link to .exe files.
@Heartrobber18: if you want to post links to .exe files on this website you are required to post its sources as well.

broken link and spammy

Submitted by fabio on Sat, 2010-06-26 21:42.

broken link and spammy looking comment. I wouldn't trust the link above and any untrusted website which ask you to "just" run an .exe file: this are potentially dangerous files (viruses).

My method above uses files distributed by Adobe (the flash creators) and simple and verifiable steps.

Flash no install

Submitted by Anonymous (not verified) on Thu, 2010-06-17 12:05.

well done, works.

Thanks saved my life!!!!

Submitted by OG (not verified) on Wed, 2010-06-16 21:39.

I'm at a collage library security Admin bull!! Anyway thanks for saving me from this Admin bull. I swear these bureaucratic jerks make life hard on us students.

Thanks, but the link goes to

Submitted by merlin (not verified) on Wed, 2010-06-16 16:29.

Thanks, but the link goes to a very old and unsecured version of flash player (10.0.32 release candidate). What we need is dll for 10.1!

Found it here, works

Submitted by merlin (not verified) on Wed, 2010-06-16 16:34.

It works!

Submitted by Kacko (not verified) on Mon, 2010-06-14 10:21.

After one hour looking for resolve the problem, tis post works!

u r saviour

Submitted by Anonymous (not verified) on Fri, 2010-06-11 17:25.

u r saviour


Submitted by Nico (not verified) on Tue, 2010-06-08 19:20.

Flawless victory. Works like charm. Thanks.

wooooops, still doesnt work...

Submitted by Anonymous (not verified) on Tue, 2010-06-08 08:07.

i tried this method. after i changed it to .zip, i successfully found all the files to be copied to the firefox plug-in folder. the the prob is, the school computer requires for the admin password even just to copy files... i cant paste them in the right destination. doomed~

Can you define bookmarks on

Submitted by fabio on Tue, 2010-06-08 08:35.

Can you define bookmarks on your Firefox profile? If so you do have write permissions to your profile folder. So you just probably putting the files in the wrong place.

thanx. worked!

Submitted by shahab (not verified) on Mon, 2010-06-07 14:02.

thanx. worked!

You may need to do something else

Submitted by Anonymous (not verified) on Mon, 2010-06-07 10:38.

As per this post ( ) you might find that different bits of software have sprayed Flash components all over the place. If you follow the instructions above,Flash might still not work properly as it may be using a component from an unexpected folder (thanks Adobe Air). If so, try searching your PC for NPSWF32.dll (from explorer, right click on your hard drive {you might need to do it for all of them if you have more than one}, click Search and pop NPSWF32.dll into the search box). Wherever you have an occurrence of this, open the folder it's in, rename the current NPSWF32.dll to, say, NPSWF32.dll.old (just to be safe), and then copy the newly downloaded version of this file (the one in the .xpi package) into that folder. It might need you to restart the PC as windows has a habit of loading .dlls into memory and not flushing them out afterwards. If so a restart should sort it.

Hope this helps

This is way harder than necessary

Submitted by Anonymous (not verified) on Sun, 2010-06-06 16:43.


All of this can be done with less software (no need to unzip) and less steps. Just download the .xpi file, press cntl-o while in firefox. This allows you to browse for the .xpi file. Choose the file. Restart Firefox.

i tired it said install

Submitted by Anonymous (not verified) on Wed, 2010-07-14 22:28.

i tired it said install script not found 201 what now?

Oh my god, that worked! Thank

Submitted by Anonymous (not verified) on Mon, 2010-06-28 19:24.

Oh my god, that worked! Thank you!


Submitted by justjasu (not verified) on Mon, 2010-05-31 16:24.

What a pain to be shut out of flash. It works perfectly IF you follow the instructions properly.

Anyone know who to do this on CHROME???

thanks really dude

Submitted by bloorose (not verified) on Fri, 2010-05-28 06:01.

dude it works really fine , i really liked ur idea it worked perfectly


Submitted by Tonya Henson (not verified) on Fri, 2010-05-28 05:35.

You can also go to open zip file to open your zip files online. I hope it would be a great help.

Need a similar solution

Submitted by Anonymous (not verified) on Wed, 2010-05-26 07:19.


I need a solution similar to this for the Java Runtime Environment. Firefox needs the add-on to access certain websites, but the level of security at my work won't allow the add-on to be updated.

If anyone can help out it would be much appreciated!!

Tooo Gooood

Submitted by Vijay (not verified) on Mon, 2010-05-24 06:50.

This is really what i needed from long time......
thanks very much


Submitted by Anonymous (not verified) on Fri, 2010-05-21 00:59.

Thanx, man! It works perfectly.
I copied all the files to the folder, restarted firefox and there it was!

Help Please

Submitted by colton (not verified) on Thu, 2010-05-20 20:12.

I am following the instructions correctly ( I believe) and it isn't working for me.

I am using firefox 3.6.3

I have copied all the files from the .zip folder into the plugin folder (after creating one) as specified to be done when doing this on firefox 3.6.3

Then when i open firefox to test out my new flash.... it still tells me i must install the plugin.

What must i do!!??!!?

Check the path!

Submitted by fabio on Thu, 2010-05-20 23:36.

You probably inserted the files in the wrong place.

Please verify that you are copying the file in %APPDATA%\Mozilla\Plugins .. To reach this directory Start → Run → Type in %APPDATA% → OK. Then you should see a folder called Mozilla, open it and in the Mozilla folder you'll see a Plugin directory (create it if you don't see it), open it and past the 2 files there.

Hope this helps.. let us know if you still have problems.

This directory might not

Submitted by Eddie (not verified) on Mon, 2010-05-24 19:08.

This directory might not exist, so if not, make it. I did this for 3.6 and it worked like a dream.

Thanks so much!

Firefox 3.6.3 Portable has

Submitted by Herbie (not verified) on Tue, 2010-05-25 08:44.

Firefox 3.6.3 Portable has its plugins in another directory:

[Firefox installation directory]\Data\plugins

Great! Thanks

Submitted by Anonymous (not verified) on Wed, 2010-05-19 10:42.

Great! Thanks

DL firefox

Submitted by Anonymous (not verified) on Wed, 2010-05-19 21:38.

If you don't have firefox, I found a way around it, instead of program files, I downloaded it right on the desktop, the folder is on the desktop, and I ran everything from there and it worked.

can someone just hook up the

Submitted by Anonymous (not verified) on Tue, 2010-05-18 23:58.

can someone just hook up the files .. non zipped.. this computer won't even extract the file !! anyone?

As described in the article,

Submitted by fabio on Wed, 2010-05-19 00:10.

As described in the article, you can use a webservice like wobzip: download the xpi file, rename it to .zip then upload to wobzip. It will give you the extracted files.

Hope this helps.

Brilliant mate!

Submitted by Anonymous (not verified) on Tue, 2010-05-18 20:34.

Brilliant mate!


Submitted by thankful one (not verified) on Tue, 2010-05-18 11:25.

thanks dude, this totally worked. only problem i had was that my firefox did not yet have the plugins folder created. Fixed after reading comments - %APPDATA%\Mozilla\ was the correct command to use.

brilliant! thanks again. now i'm off to listen to some myspace music.

Firefox Flash Install

Submitted by Kendall (not verified) on Sun, 2010-05-16 15:49.

You are a genius! It totally worked. I found the application data a different way, however. If you set your desktop background using Firefox, and then go to display, clicking on the "Desktop Background" under the desktop tab and clicking browse will get you to the app data folder. People may or may not have privileges to do this, however.

it did not work for me the

Submitted by Anonymous (not verified) on Wed, 2010-05-12 09:26.

it did not work for me the %APPDATA% still can not be accessed, it was restricted by our net costudian. how sad

See comments below on using

Submitted by fabio on Wed, 2010-05-12 13:01.

See comments below on using Firefox Portable..