There's a difference in how Epiphany draws it's borders and how FF does it. Epiphany draws a translucent border on top of content and FF draws one around the window itself.
I'm not sure if this is even something that can be handled by the theme without any changes to FF itself. Could it perhaps be possible to just remove that border? There'd be no need to draw an overlay border the way Epiphany does.
To Reproduce
Go vala.dev or any site that is visually simple enough to make the problem obvious
See error
Expected behavior
Firefox should not draw an outer border. If possible it should draw the window border on top of the web content.
Screenshots
Firefox
Epiphany
Setup information
OS: Fedora Silverblue 39
Installation method: Flatpak
Firefox version: 120.0.1
Theme version: master
Optional features enabled: gnomeTheme.hideSingleTab
Describe the bug
There's a difference in how Epiphany draws it's borders and how FF does it. Epiphany draws a translucent border on top of content and FF draws one around the window itself.
I'm not sure if this is even something that can be handled by the theme without any changes to FF itself. Could it perhaps be possible to just remove that border? There'd be no need to draw an overlay border the way Epiphany does.
To Reproduce
Expected behavior
Firefox should not draw an outer border. If possible it should draw the window border on top of the web content.
Screenshots
Setup information