Q:

Strange default zoom in Firefox 22.0

I have a completely fresh installation of Firefox 22.0 on Windows 7 and I just opened a website.
The website appeared to be zoomed (fonts as well as images) so I hit Strg+0 with no effect. I tried other websites and it was the same - they were all zoomed.
Compared with Chrome where everything is looking fine, in Firefox images and fonts are magnified!
Any pointers on what is going on here? How can I switch this off?

A:

It seems that this behavior is caused by the fact that from version 22 Firefox takes into account the font size set in the OS (e.g. "125%" corresponding to 120dpi). There is some info on Mozilla support forums:
http://support.mozilla.org/en-US/questions/962945
http://support.mozilla.org/en-US/questions/963211

A:

1) Type "about:config: in address bar 
2) search for "layout.css.devPixelsPerPx" 
3) change value of "layout.css.devPixelsPerPx" from -1.0 to 1.0

