With some youtube search results - music and other interesting topics - I obtain Your browser doesn't not recognize this format, FAQ etc. This FAQ only checks that my browser doesn't have the right plugins. This happens even with old videos (e.g. 2009) that worked well some time ago.
Is there an easy to install plugin? Google search results about this topic are messy
youtube, Firefox, html5 format and XP
Moderator: kcleung
Re: youtube, Firefox, html5 format and XP
Are you using Windows XP still as your Operating System? If you are, do you realize support for XP on pretty much every major internet browser has ended now (including security updates for the OS)? You should get off of that OS and upgrade (at a minimum) to Windows 7 (although now support is going to be ending next year for that OS as well since its almost 10 years old). Otherwise your going to go through major headaches to keep it running online. I would really recommend Windows 10 now.