Is there a way to replace the fonts of a website, but only on certain websites? I'm aware of the option under content, but that applies to all websites, and only certain websites are giving me trouble, and sometimes it's only certain fonts giving me the trouble too.
Depending on the number of pages, Stylish may be an option. You make a simple css file, where you re-define the fonts.
Afterwards you select urls the style should be applied to.
No great css knowledge is necessary, you can stick with
You can create a User Style Sheet to do this. User style sheets allow you to override a site's CSS styles and replace them with your own.
First you need to find your Firefox's profile folder and create the CSS file, do this by:
Now open that new file in a text editor (like Windows Notepad).
You can now use CSS to override styles for certain web sites, for instance to change all of the main fonts on this website to use a Serif style use:
Or to change all of the links on StackOverflow so that they're in an italic, Arial font:
Breaking those CSS lines down, they're made up of:
So your usercontent.css file would contain:
Now save that file and restart Firefox and you should see that the text is now styled the way that you want it.