Hi. Over the past few days my Firefox 104.0.2 (64-bit) has gone haywire. I still use Win7 but have it locked down pretty tightly and get security updates through the ESU program. If I open Firefox with six pinned news and weather tabs (as I have been doing for years), 0.8-1 GB of data are downloaded within a matter of minutes. Opening a new webpage (e.g., CNN.com, but it doesn't seem to matter what webpage I open) will immediately download another 0.1-0.25 GB of data. As far as I can tell there is no end to this behavior. Each new webpage causes a large download. Opening a new Firefox session without pinned or open tabs is better, but still downloads around 0.1 GB of data at the outset. Each opened webpage prompts the same 0.1-0.25 GB download outlined above. I have a network monitor on my desktop so I am confident that this behavior wasn't happening until a couple days ago. Previously my total daily download would be 1-2 GB, which included work-at-home activities, 30-60 minutes of watching Youtube videos (480p), and often a couple hours of listening to classical music (144p) on Youtube. Yesterday I did a full virus and malware scan of my computer and nothing was found. Outside of Firefox my computer seems to be operating normally.