Mozilla Firefox and Thunderbird Menu font sizes
The font size Mozilla chose for Firefox and Thunderbird menus looks awfully large on Netbook screens. It wastes space and is visually at odds with reasonably sized content. And for some weird reason you can set the content font and size via the menu but not the font and size for the drop-down menus themselves.
As the "Theme Font & Size Changer" Add-On doesn't work reliably and phones home way too often (showing a nag screen), I dug back into how to do this "manually". Probably a decade after I fixed this the first time...
You need to create the file ~/.mozilla/firefox/*/chrome/userChrome.css
with * being your profile directory (<random_number>.default usually) and you most probably have to create the chrome
directory first.
The same for Thunderbird resides in ~/.thunderbird/*/chrome/userChrome.css
. Here again the chrome
directory will most probably need to be created first.
/* Global UI font */
* { font-size: 10pt !important;
font-family: Ubuntu !important;
}
needs to go into these files for Firefox or Thunderbird respectively. The curly braces are important. So copy & paste correctly. Symlinks or hardlinks are fine if those files do not need to differ between your web browser and your email client.
Restart Firefox and/or Thunderbird to see the effect.
Obviously you can choose any other font and font size in the snippet above to suit your taste and requirements.
If you are massively space-confined and don't mind a quite ugly UI, check out the Littlefox Add-on. Ugly but optimal use of the minimal screen estate with very small screens.
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