I use flagfox. It shows a small flag at the navigation bar indicating where in the world the site is hosted. Adds nothing to my life, but it's cool to see it.
Firefox
A place to discuss the news and latest developments on the open-source browser Firefox
It sends every IP you visit, from your IP, to their servers to look it up. Just a heads up
Really? I remember reading that is stored a local database... damn, I will check it again, thanks.
Link to Flagfox.
I'm using this one too. I find an interesting extension to know where is hosted the web. I always have it activated. :D
I use the Stylus extension to make every website I visit use the same font and text size.
Fuck you, designers!
Which font do you use?
In the browser it's defined as "system-ui", which inherits whatever the OS uses as it's default font. So web pages look the same as apps.
My OS uses the font called "Ubuntu".
Indie Wiki Buddy helps you easily find and support independent wikis you might otherwise miss in search results. When you visit a wiki on Fandom, this extension will notify or automatically redirect you to quality independent wikis when they're available.
Wii Shop Music extension. It plays Nintendo Shop Music if you visit Shopping sites. Sadly the original is down but there is a backup on Internet Archive: https://web.archive.org/web/20230910224936/https://addons.mozilla.org/de/firefox/addon/wii-shop-channel/
Cloud to butt plus
Tabliss. In my case it's just an empty page with "good morning" or whatever text depending on the current time of day.
Tabliss
GNU Terry Pratchett