Hey there! It sounds like you're having an issue with Firefox on iOS, and I'm here to help. So, about your question – if Firefox is automatically connecting with your iPhone and you're looking to disconnect it, you can manage this in the Settings of your iPhone. Simply go to your iPhone's Settings > Firefox > Photos and turn off the "Sync Photos" option. This should prevent the automatic connection between Firefox and your iPhone. If you want to sync or connect them again in the future, you can always toggle that option back on.

Hope this helps, and if you have any more questions or need further assistance, feel free to ask.