I'm on a Macbook Air, Sonoma 14.5. Since the most recent Firefox updates (129.01 and 129.02), a translucent rectangle has appeared on some web pages that I access. I can see through it, but I cannot click on anything, or select text, in areas covered by the rectangle. It doesn't always appear immediately, it may take a minute or so of scrolling before it shows up. If I restart Firefox in Troubleshoot mode, the rectangle goes away. But when I restart normally, it comes back. If I turn all extensions off (I don't use very many), the problem goes away. If I turn Ghostery back on, it comes back. I've turned off Ghostery for now. So my questions are: (1) Does the latest Firefox just not work and play well with Ghostery? (2) Is that floating rectangle likely to be a sign of something bad, or just an annoyance? Many thanks for any clues!