Hello all, I am using Firefox 50.1.0 on Arch Linux and everything was fine since I changed, well... Nothing related... I installed Gimp and configure my lock screen, that's all. Now, every HTML code /code tags are not displayed properly. Instead I have symbols inside the code area but the rest of the page is perfectly normal. I've put a screenshot showing the result and the inspector. http://tof.canardpc.com/view/5e244c23-a077-4129-bc84-67fd22c39659.jpg And another one from github because it's beautiful... http://tof.canardpc.com/view/1656cfb6-cada-4220-b04a-71ee53255624.jpg I've undo my changes on Arch : Same problem I've disabled "allow website to use fonts" : Same problem I've disabled every plugins : Same problem I've started in Safe Mode : Same problem Then I tried Chromium to check if its linked to Firefox or my OS locales : No problem at all. This is really strange considering it was working normally two hours ago and suddenly not. I've been looking everywhere but did not found something useful so now I'm here asking for help :) Many thanks ! Skunk