Flash playback doesn't work, pictures are not showing up.

On my Firefox browser, Youtube suddenly stopped working, displaying

Hello, you either have JavaScript turned off or an old version of Adobe's Flash Player. Get the latest Flash player.

I tried downloading Adobe Flash Player and installing it, but it persists. Now, on a lot of sites, the pictures are not showing up either.

Did you install Flashblock or NoScript, or some sort of Firefox add-on?

No only Adblock. But I didn't block anything.

Disable Adblock Plus for now, see if Youtube works again.

Nope, nothing

Never mind, I just needed to clear my cache. I used Ccleaner

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Since this issue has been addressed, a "solved" tag will be added and this topic will be closed.

If you need this topic reopened, please contact a staff member. This applies only to the original topic starter.

Everyone else, please open a new topic for your questions.