Firefox problems - solved (somewhat)

[joe at actionline.com]

Thanks Matt. You had the right idea in your about:config comment,
although the setting name and value turned out to be a bit different.
I finally got what I needed from support.mozilla.org and the setting
name was layout.css.devPixelsPerPx and I had to bump it up to 1.3
to get a font size closer to what I see with the chromium browser.



---------------------
> On 2015-06-10 13:36, joe wrote:
>>> The fonts are ridiculously tiny
>> http://www.upquick.com/temp/fftinyfonts.jpg
>
> The firefox fonts look fine to me, but I've got an older monitor that
> might have larger pixels.  The font settings for minimum font size in
> firefox are under Edit->Preferences->Fonts and colors in the "advanced"
> button.  This can be and usually is overridden by CSS.
>
> If you've got a newer monitor with more pixels-per-inch than the old
> default of 72, it's possible that firefox is not aware of this and is
> trying to use fonts with a pixel size that is incorrect.  KDE
> applications have a setting in System Settings->Appearance->Fonts under
> "force fonts DPI" that can be adjusted to various values.  I am not sure
> if this'll do anything to firefox since it's a GTK+ application.  There
> might be an application/setting for GTK+ applications somewhere; not
> sure what it'd be called.
>
> The layout.css.dpi value in about:config is by default set to -1 (use
> system-provided value).  "xdpyinfo | grep dots" returns 96x96 dots per
> inch here.  I'm not sure whether firefox uses that info from the X
> server or does something else.  This is a thing I have not played with
> very much since the default values have worked OK for me in all firefox
> installs for years.
>