A graphic displays on my M3 macbook pro running Sequoia whenever I open Firefox. I've searched online and have read posts that suggest it may be a malicious bug of some sort. The graphic which I am attaching , isn't captured when I do a screenshot, and disappears in about 15 seconds. I took a photo of my screen with my phone in order to capture it. The graphic/alert states that "the latest OS version is ready..." but the OS is up to date. Nothing happens if you click on the "Details" button. Anyone else having this problem? Thanks