Hey there! Click on the three horizontal lines in the upper-right corner, then select "Options." In the "General" section, scroll down to "Language and Appearance." You'll see a "Fonts and Colors" section – just increase the "Address Bar" font size there. Hope that helps you see things clearer.

Hey there @stking08,

I tried following the instructions that suram080 provided here and wasn't able to get the font in the address bar to appear any bigger. While digging around, however, I did find a workaround that may work for you.

Source: https://support.mozilla.org/bm/questions/1260063 Author: @jscher2000

Firefox has one built-in feature you could try, which is a global "scaling" factor that resizes everything from menu text to web page content. Here's how to experiment (carefully) with that:

(1) In a new tab, type or paste about:config in the address bar and press Return. Click the button accepting the risk.

(2) In the filter box, type or paste devp and pause while the list is filtered -- there should only be one preference left

(3) The layout.css.devPixelsPerPx normally has -1.0 which follows the Windows Text Size setting.

Double-click to open a small dialog where you can type a new value.

Type 1.5 (make sure to remove the - sign) and click OK

That should give an effective "150%" zoom compared with the base size. (Note: on Mac Retina screens, you need to double it to 3 instead.)

If you would like larger, you could try 2 for 200%.

If something goes wrong, you can right-click the preference and choose Reset (or tap the R key) to get back to where you started.

Please be careful not to enter a value lower than 1 or higher than 10 or you may have challenges using Firefox any further!

Let us know if that helps!

See also :

• https://support.mozilla.org/en-US/questions/1415257#answer-1584444