On Wednesday 01 February 2017 14:49:16 Alice Wonder wrote: > On 02/01/2017 06:44 AM, Jonathan Billings wrote: > > > > Any chance your browser is zoomed in? Or maybe you've told firefox > > that your DPI is higher than it should be? (layout.css.devPixelsPerPx) > > That's a good possibility, FireFox has an annoying habit of zooming if > the ctrl button gets stuck even temporarily, and it isn't always obvious > it has happened. I didn't make any changes to anything, other than run the 'yum update'. I did read that round about version 30 Firefox started respecting the DPI, but that was years ago. layout.css.devPixelsPerPx is currently set to default string -1.0 Is this correct? Firefox isn't zoomed in. If I do zoom in/out using <CTRL>+ or <ctrl>- then everything resizes together, and the buttons are still proportionally oversezed. I've currently got Firefox 50.1.0 and FirefoxDeveloperEdition 53.0a2 and they both exhibit the same problem.