Recently, using Firefox Quantum and Google Search, I entered in the search bar, "450 grams," wanting to know the equivalent in ounces. The page opened up with the correct conversion, but after a second or two, the amount in grams was replaced by my email address (I use Gmail). When I used DuckDuckGo for the same search in Firefox, this did not happen. Nor does it happen if I use Chrome. It seems to me that I noticed this same behavior before upgrading to Quantum, but I won't put money on it. I also noticed in Gmail, if I try to move a message to a saved folder, my email address populates the "move to" box. Both items are annoying, to say the least. I hope somebody can explain these curious happenings and offer a fix.