Hello, I recently downloaded and started using Firefox on macOS Big Sur 11.2.3. I keep getting a TINY firefox icon in the doc that is not clickable (screenshot attached). Using this fix (kill Dock) will remove it but I don't really want to be doing that every day and I'm wondering what causes this tiny icon. Is there something I can do to stop this from happening? Or is it serving some very important function that I don't know about? I appreciate any guidance. Thanks!