We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How do I disable Firefox from using HTML5 player on YouTube, preferably without add-ons or extensions?

  • 3 replies
  • 5 have this problem
  • 11 views
  • Last reply by John99

blackaidoru
blackaidoru
more options

Is it possible to prevent Firefox from using the HTML5 Player as seen in the first image posted below? I would rather use the Flash Player as would be seen in use, below in the second image attachment, but it's no longer used on YouTube.

How can I use Flash Player by default when I visit YouTube, and can this be done without add-ons or extensions?

Is it possible to prevent Firefox from using the HTML5 Player as seen in the first image posted below? I would rather use the Flash Player as would be seen in use, below in the second image attachment, but it's no longer used on YouTube. How can I use Flash Player by default when I visit YouTube, and can this be done without add-ons or extensions?
Attached screenshots

Modified by blackaidoru

All Replies (3)

FredMcD
FredMcD
more options

Is there a reason you are using an old version of Firefox?

Some websites now use the HTML5 player instead of flash. Which players are being used on that site, and what player do you want to use?

Type about:addons<enter> in the address bar to open the Add-ons Manager. Hot key; <Control>(Mac=<Command>) <Shift> A)

On the left side of the page, select Plugins. Make sure the ones you want to use are set to Ask or Allow. ++++++++++++++++++++++++++++++++++++++++ Go to the web page. Once the page is loading, mouse to the address bar and Left click the icon. Select Permissions. In the menu, Make sure the ones you want to use are set to Ask or Allow.

blackaidoru
blackaidoru Question owner
more options

The HTML5 Player is always used on YouTube. Nothing in the plugins or permissions for that site changes that.

I want to use, and for the Flash Player to be in use by default, every time I go to YouTube.

Modified by blackaidoru

John99
John99
more options

You may be able to do that by using an extension. Any particular reason why you want to use FlashPlayer ? Flash Player often causes problems and is effectively being phased out by all major browsers, and it is expected most websites will also stop using it.

As Fred asked any particular reason for using an unsupported, unsafe version of Firefox, that increases risks to your computer and security.

See also