
Unsurprisingly, like other web browsers, Mozilla frequently updates Firefox that introduces new features and fixes existing bugs. Firefox uses the in-house developed Gecko engine. It is considered to be the spiritual successor of Netscape Navigator since the Mozilla community was founded by Netscape. Initially released in September of 2002, it is developed by Mozilla Foundation. What about you? Do you like the new theme of YouTube? Tell us in the comments.Firefox is undoubtedly one of the most popular open-sourced browsers on the internet.

The dark theme is suitable for environments with low light and fits the overall appearance of my operating system.

The common hotkey to access the web console in these browsers is Ctrl + Shift + I. The same can be done in any modern web browser which comes with built-in developer tools, for example Google Chrome, Opera or Vivaldi. You'll see a new user menu which contains a number of new commands including the dark theme.Ĭlick the "Dark theme: Off" command to toggle the theme. Now, close the console and click on your user profile icon in the top right corner. You can press the F5 key on the keyboard or use Ctrl + F5 to reload all cached page elements. Press the Enter key and refresh the YouTube page. In the console, type or copy-paste the following line: okie="VISITOR_INFO1_LIVE=fPQ4jCL6EiE" Press Ctrl + Shift + K to open the Web Developer Console tool. If you don't have an account, then create one. Sign in with your user account for this service. Open Firefox and point the browser to the following URL.

To enable the experimental dark theme on YouTube, do the following.

In the example below, I will use Mozilla Firefox. You can still try out the new appearance in any browser which supports cookie editing. If you are not one of them, here is good news. As of this writing, only a select number of users can access the updated YouTube theme.
