OS is Mint Mate 20.3, FF currently 125.0.2. Normally leave 4 tabs on FF when shutting down or suspending computer. Since the last two FF updates, it sometimes opens with one or more tab pages modified from originals, for example- email might display a random received email instead of home page, or NWS radar shows a different map from the one previously set.
These are all recent errors, and appear maybe 25% or less of the boot-up or wake-up cycles. Anyone else seeing this?