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 in Menu bar in Firefox

more options

Hello I couldn 't find how to change the font size in the menu bar, bookmarks, toolbars etc... It's too small. I don't want a zoom,I just need bigger fonts.

Hello I couldn 't find how to change the font size in the menu bar, bookmarks, toolbars etc... It's too small. I don't want a zoom,I just need bigger fonts.
Capturas de pantalla anexas

All Replies (4)

more options

Hi, to change the font size in the menu bar, just follow the step:

1.) Open Firefox, type about:config in the address bar and enter it. 2.) After that, click Accept the Risk and continue 3.) Type devp in the filter box 4.) Choose and double click layout.css.devPixelsPerPx to edit the font size in the menu bar. 5.) Change its value to 1.0 above such as 1.5 or 2.0 and click OK.

Don't choose a value below 1.0 or about 4.0 or you may find it difficult to get back to a viewable Firefox!

Refer Website: https://support.mozilla.org/en-US/questions/1239467

more options

I know that. It makes everything bigger. I only want bigger font, thank you.

more options

same problem here , so annoying eye pain, why there was no font size and letter box size setting

more options

sookean1981 said

same problem here , so annoying eye pain, why there was no font size and letter box size setting

Currently, there's no built-in method for changing just the font sizes in the user interface. Also, add-ons don't have privileges to do it.

That leaves unofficial/unsupported workarounds from the community. In particular, Firefox can be set to look for a style file at startup (userChrome.css). I have a website with more information about this option, but I don't have a specific font size rule to apply. For that, the Reddit community r/FirefoxCSS would be a good source: