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(4) In the search box above the list, type or paste fonts and pause while the list is filtered
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(3) Any bolded preferences are customized, so to restore those to their default value, right-click > Reset (2) In the search box above the list, type or paste font*size and pause while the list is filtered (the * allows for any number of characters in between the words font and size) Click the button promising to be careful or accepting the risk. (1) In a new tab, type or paste about:config in the address bar and press Enter/Return.
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Actually, it may be hard to recognize default sizes, so here's another way:
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Hi Muffers, where did you make the changes? If you were using Firefox's own Colors dialog, the default text color is black and the default background color is white.įirefox has a separate fonts dialog - the button is labeled Advanced - where you can restore default sizes.
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