We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

This thread was closed and archived. Please ask a new question if you need help.

how to increase font size in menu and bookmark bars only and keep the change?

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

more options

text size for the menu and bookmark bars are too small.Is there a simple way to change the font size without affecting webpage contents?Also how to keep the change without having to reset it everytime? Have not found a simple solution to follow for the neophyte to computer like me.

text size for the menu and bookmark bars are too small.Is there a simple way to change the font size without affecting webpage contents?Also how to keep the change without having to reset it everytime? Have not found a simple solution to follow for the neophyte to computer like me.

All Replies (2)

more options

I have this problem too.

more options

Hi Nikilet

Could you please start a new thread for your question?

Then you can provide more information like your operating system and installed add-ons.


You can set layout.css.devPixelsPerPx to 1.0 (default is -1) on the about:config page. Adjust its value in 0.1 or 0.05 steps (1.1 or 0.9) until icons or text looks right. Modifying layout.css.devPixelsPerPx affects user interface and web pages (global zoom). You can use an extension to correct the appearance of web pages.

You can look at Zoom Page WE and NoSquint Plus extension to set a default font size and page zoom on web pages.


You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.