On Monday, October 13, 2014 12:25:44 PM UTC-7, Erik Krause wrote:
>
> Am 06.10.2014 15:45, schrieb Erik Krause: 
> > what is the recommended way to debug print styles (media rules) with 
> > firebug? 
>
> Not possible? 
>

Erik,

You beat me to the punch... by over a month... and I'm sorry to see that 
you got no response, and pinged again a few hours ago. Today must be the 
day for this issue!

I've been trying to figure that out tonight, and searching around, found 
all the stuff about high-resolution displays on phones and tablets, but the 
only debug technique I can find suggested is at StackOverflow 
<http://stackoverflow.com/questions/16382542/how-to-simulate-pixel-ratio-to-test-media-queries-with-google-chrome-or-firefox>,
 
and the problem with the suggestion was pointed out by Victoria just 
minutes before I found that... the workaround causes all aspects of the 
browser to be expanded, including the chrome around the user area, and the 
whole of the debugger. So this results in the possibility of emulating the 
display, and possibly the media queries, but it is really hard to debug. 
Firebug does have features to adjust its own text size, etc., but I'm not 
convinced that makes it usable... switching the layout.css.devPixelsPerPx 
is too big of a hammer, it seems... 

As Victoria suggests there, perhaps there should be a way to affect only 
the setting of a single tab, or at least of a single window, and best would 
be only the user area of the debugger.


Printers, are, of course, just the same as mobile devices, in having 
higher-resolution "screens", only their screens are typically also larger, 
making for a lot of pixels, and far too much "zoom factor" for it to be 
applied to the chrome and debugger areas as well.

I read something about a forthcoming version of Firefox containing lots of 
mobile debug tools, but whether those are only for debugging actual 
devices, or whether they would help solve this emulation problem, is 
unclear.

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