Firefox's plugin approval message isn't that fancy. Could you check whether you have any extensions like FlashBlock or Flash Control that might be generating that approval screen? You can review your extensions on the Add-ons page. Either:

• Ctrl+Shift+a
• "3-bar" menu button (or Tools menu) > Add-ons

In the left column, click Extensions. Then take a close look at what is listed on the right side. If in doubt, disable.

Often a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step.

Any improvement?

After the above,

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options) key, and then starting Firefox. Is the problem still there?

check this:

• see if there are updates for your graphics drive drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

• disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

• disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:

• http://kb.mozillazine.org/Flash#Troubleshooting

I don't have either of these - FlashBlock or Flash Control. Everything is set not disable and always activate.

There are no updates available. I already did this - disable protected mode.

With Youtube, the video box is like I said, Black with a clickable 'F' in the middle. It is actually playing the video and if I put the mouse on the playing timeline, I can see the thumbs of the video. This is what I see.

Hi Spuds13, could you right-click that "f" and if you get Firefox's right-click context menu (not the Flash player menu), choose Inspect Element (Q). That will open the Inspector in the lower part of the tab and may help identify what is inserting that layer in front of the video. Or maybe not, but that's what I would try.

With respect to:

I don't have either of these - FlashBlock or Flash Control. Everything is set not disable and always activate.

Could you provide a list of your extensions? You can copy/paste a list from the following page, either:

• "3-bar" menu button > "?" button > Troubleshooting Information
• (menu bar) Help > Troubleshooting Information
• type or paste about:support in the address bar and press Enter

Scroll down to the Extensions heading, and you can select the entire table that follows and Ctrl+c (or right-click>Copy) and paste into a reply. It may look a little messy, but we're used to it.

Here's my right click options, looks like just Youtube options.

But you did solve my problem. When I was going into Adds, I was only looking at Plugins. When I went to Extensions, I saw that Flashblock WAS on. I disabled it and now Youtube works.

Thanks guys!!

That was very good work. Well Done. Please flag your last post as Solved Problem so others will know.

The way Flashblock works is, it prevents videos from playing until you press that arrow in the player area. Very useful.

Load the web page. After the page is loaded, click the down arrow next to the Flashblock icon. Now select Allow Flash On This Site.