Something is weird about Firefox 41…

[Sam Varshavchik]

Is anyone else seeing some layout – weirdness, as best I can put it, after  
installing the FF 41 update?

After I installed the FF 41 update, many – but not all – web sites appear  
to end up getting formatted to a fixed width. Resizing the browser window  
does not rewrap the content, but just centers it, with the same effective  
content width, by adding large, empty, margins on both sides.

Almost, as if, the content is formatted for a mobile device with limited  
horizontal resolution. That's the best I can describe what I'm seeing.