Ubuntu
firefox package

  1. Bug #1500282
  2. Comment #8

Comment 8 for bug 1500282

Revision history for this message
In , Moz-bugzilla-e (moz-bugzilla-e) wrote :

But from my (limited) understanding, the problem is that the GDK_SCALE is not the value which is rounded here. As I see it, the DPI (referred to as font scaling, gtk-xft-dpi or Xft/DPI setting) operates independently from the "global" GDK_SCALE setting.

If I am reading bug #1131978 correctly, both are used to determine the overall "scale" within Firefox. That is, the font scaling read from gdk_screen_get_resolution is not affected by GDK_SCALE (but maybe by GDK_DPI_SCALE?).

In any case, it is obvious that the *UI* (is it called chrome?) part of Firefox scales correctly (as seen for example in the font size in about:settings and the tab font size), but the *content* part doesn't. After applying this patch, both scale consistently.