NoSquint doesn’t work with Firefox v47+ Please try NoSquint Plus Manage site-specific zoom levels and color settings

FredMcD said

NoSquint doesn’t work with Firefox v47+ Please try NoSquint Plus Manage site-specific zoom levels and color settings

These are the only options.

Stylish or userContent.css can be made to change Fonts on specific websites, but either would involve a steep learning curve.

https://addons.mozilla.org/en-US/firefox/addon/stylish/ https://userstyles.org/

http://kb.mozillazine.org/UserContent.css

Hi   !
Found this:
superuser.com/questions/527774/replace-fonts-in-firefox-on-only-certain-websites-and-only-certain-fonts
Fingers crossed that this is what you're looking for   .......

Speaking of add-ons, there are a couple of extensions that say they can switch a page over to your preferred default fonts on the fly. I haven't tried either of them myself:

• Colors & Fonts Buttons
• Toggle Document Fonts

The add-ons I saw for modifying fonts in pages looked too complicated to recommend. Maybe someone knows of a simpler one.

jscher2000 said

Speaking of add-ons, there are a couple of extensions that say they can switch a page over to your preferred default fonts on the fly. I haven't tried either of them myself:

• Colors & Fonts Buttons
• Toggle Document Fonts

The add-ons I saw for modifying fonts in pages looked too complicated to recommend. Maybe someone knows of a simpler one.

Both are only shortcuts for the "Allow pages to choose their own fonts, instead of my selections above:" option of Firefox. Thank you anyways. :)

Happy112 said

Hi   !
Found this:
superuser.com/questions/527774/replace-fonts-in-firefox-on-only-certain-websites-and-only-certain-fonts
Fingers crossed that this is what you're looking for   .......

This method seems to be working on most websites, except for messenger.com. Thank you very much! :)

You're quite welcome;   enjoy   !
(bummer about that   messenger.com   though)