I'm on a Pixel 7 and I use Firefox Focus as my default browser app for news/socials/daily browsing. It's not connected to any Google accounts and I erase as I go along to avoid cookies/marketing/ad tracking. I also run Bitdefender. Focus background data usage is off.

Hi, I'm on a Pixel 7 and I use Firefox Focus as my default browser app for news/socials/daily browsing. It's not connected to any Google accounts and I erase as I go along to avoid cookies/marketing/ad tracking. I also run Bitdefender. Focus background data usage is off. Today I ran out of mobile data and on checking apparently Firefox Focus used 9GB of foreground data just today. I'm not sure how, as I was only on mobile data for about an hour, and the phone was in my pocket for that time. It shows 11 minutes of screen time, but 49% of my battery used today. Is this a bug, or have I been hacked/compromised? Cheers