Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

font size

  • 2 replies
  • 1 has this problem
  • 17 views
  • Last reply by cor-el

more options

I changed the fonts size settings for my mom who has bad vision while she was visiting but now cannot reset it to my original default settings which I prefer. Could you please tell me the:

(1) default font and size (2) default proportional and size (3) default monospace and size (4) default minimum font size

Thanks!! Laura Scorr

I changed the fonts size settings for my mom who has bad vision while she was visiting but now cannot reset it to my original default settings which I prefer. Could you please tell me the: (1) default font and size (2) default proportional and size (3) default monospace and size (4) default minimum font size Thanks!! Laura Scorr

Chosen solution

I think generally the default is 16 for proportional fonts and 13 for fixed fonts, but could I suggest this roundabout method:

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the search box above the list, type or paste font*size and pause while the list is filtered (it has a * in the middle to match both font.size and font.minimum-size)

(3) Most of these preferences will be at their default values. For those that have been customized, you can double-click to edit the value, or right-click/Ctrl+click and choose Reset from the context menu to restore the default.

Does that work?

Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

I think generally the default is 16 for proportional fonts and 13 for fixed fonts, but could I suggest this roundabout method:

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the search box above the list, type or paste font*size and pause while the list is filtered (it has a * in the middle to match both font.size and font.minimum-size)

(3) Most of these preferences will be at their default values. For those that have been customized, you can double-click to edit the value, or right-click/Ctrl+click and choose Reset from the context menu to restore the default.

Does that work?

more options

You can look at the Default FullZoom Level or NoSquint extension to set a default font size and page zoom on web pages.