![I can not adjust print margins in Firefox: even modifying them, they always remain the same. Why? | Firefox Support Forum | Mozilla Support I can not adjust print margins in Firefox: even modifying them, they always remain the same. Why? | Firefox Support Forum | Mozilla Support](https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2018-12-08-16-29-41-fab885.png)
I can not adjust print margins in Firefox: even modifying them, they always remain the same. Why? | Firefox Support Forum | Mozilla Support
![為什麼列印網頁時頁首與頁尾消失了? / Page Margin Setting causes Headers and Footers to Disappear when Printing - 布丁布丁吃什麼? 為什麼列印網頁時頁首與頁尾消失了? / Page Margin Setting causes Headers and Footers to Disappear when Printing - 布丁布丁吃什麼?](https://lh3.googleusercontent.com/-9Dv4z_hc-ZE/YGyS74WzCUI/AAAAAAAE8K0/UrRjqiVDHP4W6NeIUgAK_cUkH5TYytuAQCLcBGAsYHQ/s1600/2021-0406-220111-alig-ne-ain-FDr-The-Popular-ax-script.png)
為什麼列印網頁時頁首與頁尾消失了? / Page Margin Setting causes Headers and Footers to Disappear when Printing - 布丁布丁吃什麼?
![為什麼列印網頁時頁首與頁尾消失了? / Page Margin Setting causes Headers and Footers to Disappear when Printing - 布丁布丁吃什麼? 為什麼列印網頁時頁首與頁尾消失了? / Page Margin Setting causes Headers and Footers to Disappear when Printing - 布丁布丁吃什麼?](http://lh3.googleusercontent.com/-XwprDZY-VxY/YGyS7_npVeI/AAAAAAAE8LE/3V3XuBef0b8pq1U-GokKWs2ogykSm5HkwCLcBGAsYHQ/s1600/27-Page_Margin_Setting_causes_Headers_1.jpg)
為什麼列印網頁時頁首與頁尾消失了? / Page Margin Setting causes Headers and Footers to Disappear when Printing - 布丁布丁吃什麼?
![Default Page Border/Margin/Padding - Remove or are these print margins? · Issue #1930 · dompdf/dompdf · GitHub Default Page Border/Margin/Padding - Remove or are these print margins? · Issue #1930 · dompdf/dompdf · GitHub](https://user-images.githubusercontent.com/4990716/57284922-0a3c8380-70aa-11e9-81ca-27cf28422935.png)