I can't read the text on this site. Does anyone know a way to permanently disable "font-weight: <=300" for all websites in firefox without resorting to anything as heavy as Stylish, or will I need to write my own extension? There's a minimum font size preference, but not a minimum weight.
I'm not sure you could do exactly that even with Stylish as there's no way in CSS to match elements based on their style - you could define a global font-weight just by adding this to "chrome/userContent.css" in your profile directory, but that would override every font-weight on every element:
Ubuntu 16.04 + Firefox 57, Ubuntu 16.04 + Chromium 62.0.3202.89, macOS Sierra + Firefox 57. Inaccessible to me on all - the font is too thin for me to read. I can't scale the font size up high enough either as the layout breaks. I used the `font-weight` hack initially, but after I clicked a couple of internal links that reset the override, I gave up.