This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

What is this icon in the upper left corner

  • 1 reply
  • 3 have this problem
  • 2 views
  • Last reply by ben164

more options

This blue icon recently appeared in the upper left corner, and it's there even when I watch video full screen. Clicking on it doesn't do anything. What is it and how do I get rid of it when I want to watch video?

This blue icon recently appeared in the upper left corner, and it's there even when I watch video full screen. Clicking on it doesn't do anything. What is it and how do I get rid of it when I want to watch video?

Chosen solution

Figured it out, it's the new presenter overlay feature in Mac OS Sonoma

Read this answer in context 👍 2

All Replies (1)

more options

Chosen Solution

Figured it out, it's the new presenter overlay feature in Mac OS Sonoma