Hello,
Learning CSS styling has been a lot of fun and I use it a lot to customize Firefox's appearance. However, moz-win-borderless-glass was quietly removed in FF 117, but it was used for a lot more than just Windows 7 and 8 appearances. It made Firefox look seamless with the Windows 10 and 11 system themes compared to Firefox's base styling. I don't understand why moz-win-borderless-glass was removed. Can this feature please be restored for greater customization? I'd really have to hate to a new browser that supports the customization I prefer...
Thanks!