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

Can I set the font size for menu items and tab label content?

  • 3 ŋuɖoɖowo
  • 6 masɔmasɔ sia le wosi
  • 1 view
  • Nuɖoɖo mlɔetɔ cor-el

more options

Old eyes, small fonts.

I can manage fonts/zoom for site content. SITE FONTS ARE NOT THE PROBLEM.

Is there a way to set the font parameters for the BROWSER in about:config to control the fonts of BROWSER MENU ITEMS (File Edit View... etc) and TAB TITLE (TEXT) CONTENT?

ps -- Save us from trite canned boilerplate. A simple 'no', or 'yes' with simple specifics of relevant about:config entries, would be nice. GREAT would be access to the FULL list of possible about:config settings

Old eyes, small fonts. I can manage fonts/zoom for site content. SITE FONTS ARE NOT THE PROBLEM. Is there a way to set the font parameters for the BROWSER in about:config to control the fonts of BROWSER MENU ITEMS (File Edit View... etc) and TAB TITLE (TEXT) CONTENT? ps -- Save us from trite canned boilerplate. A simple 'no', or 'yes' with simple specifics of relevant about:config entries, would be nice. GREAT would be access to the FULL list of possible about:config settings

Ŋuɖoɖo si wotia

You're keeping that 'EASY' button, I take it? Already had something like this for Thunderbird, now I feel a bit silly for not connecting the dots. Thanks.

ps -- Just in case... Got the full list of about:config opportunities?

Xle ŋuɖoɖo sia le goya me 👍 0

All Replies (3)

more options

there is the theme font and size changer addon which does this.

Thanks in advance!

more options

Ɖɔɖɔɖo si wotia

You're keeping that 'EASY' button, I take it? Already had something like this for Thunderbird, now I feel a bit silly for not connecting the dots. Thanks.

ps -- Just in case... Got the full list of about:config opportunities?

more options

You can use an extension to set a default font size and page zoom on web pages.

Note that it is better not to increase the minimum font size, but to use an extension to set the default page zoom to prevent issues with text not being displayed properly.


You can check out the comments in the files that define the default prefs.

  • resource:///defaults/preferences/firefox.js
  • resource://gre/greprefs.js