i need to reset my default font size!

Can you elaborate a bit more? Is that a page zoom issue, some accessibility preference that you'd like to undo, or the whole interface has a different size? It would be one of these cases most likely: * [[Font size and zoom - increase the size of web pages]] * [[Websites look wrong or appear differently than they should]] * [[Accessibility features in Firefox - Make Firefox and web content work for all users]]