i am tryin to play videos on youtube using firefox, but it keeps saying that i need to get adobe flash player ?

If your YouTube is stuck with "java script" and "flash player"

messages and people are telling you change or install stuff,

DON'T TOUCH A THING!

You will get nowhere fiddling with java scripts, flash players,

firewall settings, anti-virus utilities, active X controls, pop-up

blockers or various browsers. And definitely stay away from

any software that people on this page want you to buy.

None of those things will help you, because your computer

and YouTube were working perfectly fine a while ago, right?

The first rule of thumb and best option should ALWAYS be:

don't disable, erase, uninstall, switch, download, alter, add,

change or install anything. That'll only make matters worse.

I am fairly sure that your "java script" and "flash player" are

fine. Nothing within YouTube has changed in the past year.

If anything, the newer "flash players", especially version 10,

have been known to give lots of trouble to many YouTubers.

Your problem might fix itself within a couple hours or by the

next day because YouTube frequently shuts down many of

its servers every single day without telling anybody in order

to update stuff. On some of those occasions it's YouTube's

transmission of "java" or "flash" that's poor, not yours.

If the following day your YouTube is still stuck and showing

you those terrible "java script" and "flash player" messages,

it is possible that your subdirectories of "temporary internet

files" and memory (many times called "cache") are entirely

maxxed out and cannot take anymore, the end result being

that YouTube videos cannot even make it onto your screen.

"Temporary internet files" are tiny bits of webpages that get

permanently put on your computer. They will remain forever

and ever, gradually plugging up your computer just like hair

slowly clogs a sink drain until you get rid of them, or "clear

your cache" including "cookies" and "history".

If you're not sure how to clear your "cache", or if you would

like extra 'tips' on making YouTube run even better (without

having to buy or install anything), click my avatar and send

send me a message -- ideally with your YouTube or regular

email address. I will guide you step-by-step through "cache"

clearing plus my 'tips' in plain English with full explanations.

Note 1: if you have Google Web Accelerator (or something

similar to it), dump it, burn it, trash it, disable it, uninstall it;

-- do all that you can to get as far away from it as possible,

even though this contradicts all my advice. Not only does it

conflict with YouTube, simply clicking on "Don't Accelerate

This Website" will not help you whatsoever.

Note 2: longer videos only require "Flash" and "Shockwave"

in order to play smooth. Other than that, avoid all the sales

pitches that some Yahooers are shilling, because they are

really disguised salespeople and peddlers. Their "answers"

have nothing to do with your question, and their wares may

worsen your problem. Besides, what kind of selfish answer

is that? [my paraphrase] "Although you cannot even watch

or access videos, get this downloader."

Note 3: a very odd fix that once worked for me was altering

the URL "www . youtube . com" to simply "youtube . com",

(or you can even try "ca . youtube . com").

IF YOU'RE USING FIREFOX, BELIEVE IT OR NOT, I HAVE

5 ALTERNATE SOLUTIONS. PLEASE CLICK MY AVATAR

AND LET ME KNOW EITHER YOUR EMAIL ADDRESS OR

YOUTUBE CHANNEL.

Try refreshing the webpage

or...

Turn off web accelerator, if you have one - it may be conflicting with youtube.

or..

It could be due to slow connection or high traffic.

Try watching it during off peak hours, the video will be smoother.

Or you could watch it offline smoothly... try using 'zillatube' .

It works well - Just google search "zillatube" to get it.

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Try http://www.mp4some.com/