Youtube does not work on Firefox Help!

How did you install the flash??? Manually or automatically by FF??

If you have the NoScript addon, be sure you allow script. Sometimes, especially after upgrades, even if you had previously given FF permission to run scripts, it will reset itself and you will have to give it permission again (which is why you get the Flash notice)

Monk

you need to know that there is a different between flash and flash activex

NoScript does not discriminate.

NoScript

NoScript is yet another protection tool that blocks Javascripts and allows only from trusted sources. NoScript also blocks ActiveX, Flash and Shockwave elements on page with a solid red block with a play button in it. The Flash/Shockwave element can be viewed/played by clicking the play button. You can also teach NoScript not to block scripts from trustworthy sites by adding it to its whitelist or by clicking on the icon in the status-bar. NoScript blocks scripts from trusted sources like Google Analytics, so you need to add them to the whitelist manually.

First, in FF, go to <VIEW> and check <STATUS BAR> if it is not already checked. Then click on CTRL-SHIFT-A and a pane will open showing what, if any, addons you have installed. If NoScript is present as an addon, at the far right of the status bar you should see an white button with a blue "S"; the button my be clear, partially obscured, or have the universal "NO" symbol, overlaid on the "S."

Unless you tell it otherwise, NoScript blocks Flash, ActiveX, Macromedia, et al., scripts. To allow scripts for a particular URL, click on the "S" and a list of URLs will open allowing you to ALLOW those you trust or want.

If we assume that you DLed and installed the correct version of Flash, I cannot think of any other reason why you would get the error message instructing you to install Flash.

Monk

download flash active x :)