I use to see the youtube when i turn on mozilla fox but notice it's not there again what can i do to get it back

ofcourse by downloadHelper+Mozilla fire fox or real player 11 or IDM

To disable all of Firefoxs add-ons, you have to open the browser in its Safe Mode by clicking Start > All Programs > Mozilla Firefox > Mozilla Firefox (Safe Mode)
If that won't work, then you will just gonna have to uninstall Firefox then download and install a fresh Firefox from Mozilla.

Mozilla Firefox

Hi
Try using the latest browser versions like IE9, Fire Fox 4.0, ..

I recommend Mozilla Fire Fox 4, it's nice, and free ;-)

And be sure to install Adobe Flash, it's important for video to run in the browser.

Please, Tell us your results
Good Luck

Hi,
We need more info about your Operating System ( xp, vista, 7 ,,, )
About me, I'm big fan with Mozilla Mozilla Fire Fox 4, It's fast and elegant.
Good Luck

For some reason some times you have to put HTTPS://youtube.com in stead of HTTP in the fox's address bar... it is temporary it will come back to normal eventually...

Are you using your school's computer-network, or your employer's computer-network?

If so, then that network may _deliberately_ be blocking access to "time-wasting" sites, such as YouTube and eBay and Twitter and Amazon.

Hai Dud,

Try removing the Mozilla ActiveX Control. It's not compatible with Firefox 2.x, and will cause problems. See ActiveX for instructions.
You said you removed similar stuff, but make sure you clear Firefox cookies of anything that matches youtube (see Removing cookies?).
Also look at this page to identify and remove the "npunagi2" plugin.

Hope it Helped You,If so give an "High Five!" [;)]

If the problem is the same on all browsers (including Chrome, Safari or Internet Explorer) then you should update your graphic drivers: download and install a free driver updater software, e.g. http://www.innovative-sol.com/drivermax/index.htm - let it scan and update all your missing drivers.

I WANT SEE SOME VIDEOS

First you will need firefox. Best web browser you can get.
http://www.mozilla.com/firefox/

Once you install firefox, now you need to apply some add-ons.
There are several add-ons that will allow you to save the video stream to your hard drive. I prefer download helper, but there are others, and they work just as well.

https://addons.mozilla.org/en-US/firefox/addon/3006

most of these files are ".flv". So if you want to play them back you will need a media player that can read ".flv" files.

I like VLC:
http://www.videolan.org/vlc/

To enhance fire fox, try using other add-ons:
https://addons.mozilla.org/en-US/firefox/browse/type:1