It seems to be my month/quarter for annoying problems, the latest is Mozilla Thunderbird, it keeps changing the font size to the smallest available, I've tried changing settings in tools/options no joy!
I start to draft an Email, my first action is to increase text size (so I can read it!) Everything is fine until I have to go back to correct a spelling, add or delete text, when I return to the place I was at before the "deviation" text has shrunk back to barely visible and I have to set it back to what I had set previously. This gets a bit wearing, after the first couple of occurrences.
Anybody had similar problems? If so how did you fix it?