Have printed error free from FF (19.0.2) with Toshiba laptop (Windows Vista) to Brother DCP 7020 printer for several years. About a week and a half ago, something changed so printing is now messed up. I often print Sudoku puzzles from websudoku.com, which should print one puzzle per page. However, FF now formats that one puzzle per page into FOUR PAGES, printing 1/4 of the puzzle on the upper left side of each of the four printed pages. I have tried all of the fixes suggested including print.print.printing and changing fonts, etc. Nothing changes the erroneous formatting of one simple puzzle into four printed pages. The problem is DEFINITELY with FF, as I can use the same computer with Internet Explorer to go to the same sudoku website and IE prints out the one page puzzle on one page as it should. This is the first real problem I have encountered with FF over many years of usage, and I do hope that someone can help me. Thank you in advance. Rick.